Precision, Ultralow Noise, RRIO, Zero-Drift Op Amp ADA4528-1/ADA4528-2 Data Sheet PIN CONNECTION DIAGRAMS Low offset voltage: 2.5 V maximum Low offset voltage drift: 0.015 V/C maximum Low noise 5.6 nV/Hz at f = 1 kHz, AV = +100 97 nV p-p at f = 0.1 Hz to 10 Hz, AV = +100 Open-loop gain: 130 dB minimum CMRR: 135 dB minimum PSRR: 130 dB minimum Unity-gain crossover: 4 MHz Gain bandwidth product: 3 MHz at AV = +100 -3 dB closed-loop bandwidth: 6.2 MHz Single-supply operation: 2.2 V to 5.5 V Dual-supply operation: 1.1 V to 2.75 V Rail-to-rail input and output Unity-gain stable NIC 1 ADA4528-1 +IN 3 TOP VIEW (Not to Scale) V- 4 NIC 7 V+ 6 OUT 5 NIC NOTES 1. NIC = NO INTERNAL CONNECTION. Figure 1. ADA4528-1 Pin Configuration, 8-Lead MSOP NIC 1 8 NIC -IN 2 ADA4528-1 +IN 3 TOP VIEW (Not to Scale) V- 4 7 V+ 6 OUT 09437-102 5 NIC NOTES 1. NIC = NO INTERNAL CONNECTION. 2. CONNECT THE EXPOSED PAD TO V- OR LEAVE IT UNCONNECTED. APPLICATIONS Figure 2. ADA4528-1 Pin Configuration, 8-Lead LFCSP Thermocouple/thermopile Load cell and bridge transducers Precision instrumentation Electronic scales Medical instrumentation Handheld test equipment For ADA4528-2 pin connections and for more information about the pin connections for these products, see the Pin Configurations and Function Descriptions section. The ADA4528-1/ADA4528-2 are ultralow noise, zero-drift operational amplifiers featuring rail-to-rail input and output swing. With an offset voltage of 2.5 V, offset voltage drift of 0.015 V/C, and typical noise of 97 nV p-p (0.1 Hz to 10 Hz, AV = +100), the ADA4528-1/ADA4528-2 are well suited for applications in which error sources cannot be tolerated. The ADA4528-1/ADA4528-2 have a wide operating supply range of 2.2 V to 5.5 V, high gain, and excellent CMRR and PSRR specifications, which make it ideal for applications that require precision amplification of low level signals, such as position and pressure sensors, strain gages, and medical instrumentation. The ADA4528-1/ADA4528-2 are specified over the extended industrial temperature range (-40C to +125C). The ADA4528-1 and ADA4528-2 are available in 8-lead MSOP and 8-lead LFCSP packages. For more information about the ADA4528-1/ADA4528-2, see the AN-1114 Application Note, Lowest Noise Zero-Drift Amplifier Has 5.6 nV/Hz Voltage Noise Density. VSY = 5V AV = 1 VCM = VSY/2 10 1 1 10 100 1k 10k 100k 1M FREQUENCY (Hz) 10M 09437-063 VOLTAGE NOISE DENSITY (nV/Hz) 100 GENERAL DESCRIPTION Figure 3. Voltage Noise Density vs. Frequency Table 1. Analog Devices, Inc., Zero-Drift Op Amp Portfolio 1 Low Micropower Power (<1 mA) Type (<20 A) Single ADA4528-1 ADA4051-1 AD8628 AD8538 Dual ADA4528-2 ADA4051-2 AD8629 AD8539 Quad AD8630 Ultralow Noise 1 Rev. F 8 -IN 2 09437-001 FEATURES 16 V Operating Voltage AD8638 30 V Operating Voltage ADA4638-1 AD8639 See www.analog.com for the latest selection of zero-drift operational amplifiers. Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 (c)2011-2017 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com ADA4528-1/ADA4528-2 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Pin Configurations and Function Descriptions ............................7 Applications ....................................................................................... 1 Typical Performance Characteristics ..............................................9 General Description ......................................................................... 1 Applications Information .............................................................. 19 Pin Connection Diagrams ............................................................... 1 Input Protection ......................................................................... 19 Revision History ............................................................................... 2 Rail-to-Rail Input and Output .................................................. 19 Specifications..................................................................................... 3 Noise Considerations ................................................................. 19 Electrical Characteristics--2.5 V Operation............................. 3 Comparator Operation .............................................................. 21 Electrical Characteristics--5 V Operation................................ 4 Printed Circuit Board Layout ................................................... 22 Absolute Maximum Ratings............................................................ 6 Outline Dimensions ....................................................................... 23 Thermal Resistance ...................................................................... 6 Ordering Guide .......................................................................... 24 ESD Caution .................................................................................. 6 REVISION HISTORY 8/2017--Rev. E to Rev. F Deleted CP-8-19.................................................................. Universal Updated Outline Dimensions ....................................................... 24 Changes to Ordering Guide .......................................................... 25 6/2017--Rev. D to Rev. E Deleted CP-8-12.................................................................. Universal Added CP-8-19 ................................................................... Universal Updated Outline Dimensions ....................................................... 24 Changes to Ordering Guide .......................................................... 25 5/2013--Rev. C to Rev. D Added 8-Lead LFCSP Package (CP-8-11) ....................... Universal Changes to Table 5 ............................................................................ 7 Added Figure 7, Renumbered Sequentially .................................. 8 Added Figure 62 and Figure 63 .................................................... 19 Changes to Comparator Operation Section, Figure 68, Figure 69, Figure 70, and Figure 71 .............................................. 21 Changes to Figure 72 ...................................................................... 22 Added Figure 76.............................................................................. 24 9/2012--Rev. B to Rev. C Changes to Features Section............................................................ 1 Added Comparator Operation Section ....................................... 21 Added Figure 65 to Figure 69; Renumbered Sequentially ........ 21 7/2012--Rev. A to Rev. B Added ADA4528-2 ............................................................. Universal Changes to Features Section, Figure 1, Figure 2, and Table 1 .... 1 Added Pin Connection Diagrams Section and Figure 3; Renumbered Sequentially ................................................................1 Changes to Table 2 .............................................................................3 Changes to Table 3 .............................................................................5 Change to Endnote 1 of Table 4 and Thermal Resistance Section.................................................................................................7 Added Pin Configurations and Function Descriptions Section, Figure 4, Figure 5, and Table 6 .........................................................8 Added Figure 6 and Table 7 .............................................................9 Changes to Input Protection Section ........................................... 19 Changes to Source Resistance Section and Caption of Figure 63 ...................................................................... 20 Changes to Residual Voltage Ripple Section and Caption of Figure 64 ...................................................................... 21 Changes to Ordering Guide .......................................................... 22 9/2011--Rev. 0 to Rev. A Added 8-Lead LFCSP_WD Package ................................ Universal Changes to General Description Section ......................................1 Added Figure 2; Renumbered Sequentially ...................................1 Changes to Offset Voltage, Offset Voltage Drift, Power Supply Rejection Ratio, and Settling Time to 0.1% Parameters, Table 2 ...3 Changes to Thermal Resistance Section and Table 5 ...................5 Changes to Figure 41 and Figure 44............................................. 12 Changes to Figure 45 and Figure 48............................................. 13 Updated Outline Dimensions ....................................................... 18 Changes to Ordering Guide .......................................................... 18 1/2011--Revision 0: Initial Version Rev. F | Page 2 of 24 Data Sheet ADA4528-1/ADA4528-2 SPECIFICATIONS ELECTRICAL CHARACTERISTICS--2.5 V OPERATION VSY = 2.5 V, VCM = VSY/2, TA = 25C, unless otherwise specified. Table 2. Parameter INPUT CHARACTERISTICS Offset Voltage Symbol Test Conditions/Comments VOS VCM = 0 V to 2.5 V -40C TA +125C, MSOP package -40C TA +125C, LFCSP package -40C TA +125C, MSOP package -40C TA +125C, LFCSP package Min Typ Max Unit 0.3 2.5 4 4.3 0.015 0.018 400 600 800 1 2.5 ADA4528-1 VCM = 0 V to 2.5 V -40C TA +125C RL = 10 k, VO = 0.1 V to 2.4 V -40C TA +125C RL = 2 k, VO = 0.1 V to 2.4 V 0 135 116 130 126 125 132 V V V V/C V/C pA pA pA nA V dB dB dB dB dB ADA4528-2 -40C TA +125C RL = 2 k, VO = 0.1 V to 2.4 V 121 122 132 dB dB -40C TA +125C 119 Offset Voltage Drift VOS/T Input Bias Current IB 0.002 220 -40C TA +125C Input Offset Current IOS 440 -40C TA +125C Input Voltage Range Common-Mode Rejection Ratio CMRR Open-Loop Gain AVO Input Resistance Differential Mode Common Mode Input Capacitance Differential Mode Common Mode OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low Short-Circuit Current Closed-Loop Output Impedance POWER SUPPLY Power Supply Rejection Ratio Supply Current per Amplifier DYNAMIC PERFORMANCE Slew Rate Settling Time to 0.1% Unity-Gain Crossover Phase Margin Gain Bandwidth Product 158 140 dB RINDM RINCM 225 1 k G CINDM CINCM 15 30 pF pF 2.495 V V V V mV mV mV mV mA VOH VOL ISC ZOUT PSRR ISY SR tS UGC M GBP RL = 10 k to VCM -40C TA +125C RL = 2 k to VCM -40C TA +125C RL = 10 k to VCM -40C TA +125C RL = 2 k to VCM -40C TA +125C 2.49 2.485 2.46 2.44 5 20 RL = 10 k, CL = 100 pF, AV = +1 VIN = 1.5 V step, RL = 10 k, CL = 100 pF, AV = -1 VIN = 10 mV p-p, RL = 10 k, CL = 100 pF, AV = +1 VIN = 10 mV p-p, RL = 10 k, CL = 100 pF, AV = +1 VIN = 10 mV p-p, RL = 10 k, CL = 100 pF, AV = +100 Rev. F | Page 3 of 24 10 15 40 60 30 0.1 f = 1 kHz, AV = +10 VSY = 2.2 V to 5.5 V -40C TA +125C IO = 0 mA -40C TA +125C 2.48 130 127 150 1.4 0.45 7 4 57 3 1.7 2.1 dB dB mA mA V/s s MHz Degrees MHz ADA4528-1/ADA4528-2 Parameter -3 dB Closed-Loop Bandwidth Overload Recovery Time NOISE PERFORMANCE Voltage Noise Voltage Noise Density Current Noise Current Noise Density Data Sheet Symbol f-3dB Test Conditions/Comments VIN = 10 mV p-p, RL = 10 k, CL = 100 pF, AV = +1 RL = 10 k, CL = 100 pF, AV = -10 en p-p en f = 0.1 Hz to 10 Hz, AV = +100 f = 1 kHz, AV = +100 f = 1 kHz, AV = +100, VCM = 2.0 V f = 0.1 Hz to 10 Hz, AV = +100 f = 1 kHz, AV = +100 in p-p in Min Typ 6.2 50 Max 97 5.6 5.5 10 0.7 Unit MHz s nV p-p nV/Hz nV/Hz pA p-p pA/Hz ELECTRICAL CHARACTERISTICS--5 V OPERATION VSY = 5 V, VCM = VSY/2, TA = 25C, unless otherwise specified. Table 3. Parameter INPUT CHARACTERISTICS Offset Voltage Offset Voltage Drift Input Bias Current Symbol Test Conditions/Comments VOS VCM = 0 V to 5 V -40C TA +125C -40C TA +125C VOS/T IB Min Typ Max Unit 0.3 2.5 4 0.015 V V V/C 200 300 250 pA pA pA 350 pA 0.002 ADA4528-1 90 -40C TA +125C ADA4528-2 125 -40C TA +125C Input Offset Current IOS ADA4528-1 180 400 pA 250 500 500 pA pA 600 5 pA V dB dB dB dB dB dB -40C TA +125C ADA4528-2 -40C TA +125C Input Voltage Range Common-Mode Rejection Ratio CMRR Open-Loop Gain AVO Input Resistance Differential Mode Common Mode Input Capacitance Differential Mode Common Mode OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low Short-Circuit Current Closed-Loop Output Impedance VCM = 0 V to 5 V -40C TA +125C RL = 10 k, VO = 0.1 V to 4.9 V -40C TA +125C RL = 2 k, VO = 0.1 V to 4.9 V -40C TA +125C 0 137 122 127 125 121 120 160 139 131 RINDM RINCM 190 1 k G CINDM CINCM 16.5 33 pF pF 4.995 V V V V mV mV mV mV mA VOH VOL ISC ZOUT RL = 10 k to VCM -40C TA +125C RL = 2 k to VCM -40C TA +125C RL = 10 k to VCM -40C TA +125C RL = 2 k to VCM -40C TA +125C f = 1 kHz, AV = +10 Rev. F | Page 4 of 24 4.99 4.98 4.96 4.94 4.98 5 20 40 0.1 10 20 40 60 Data Sheet Parameter POWER SUPPLY Power Supply Rejection Ratio Supply Current per Amplifier DYNAMIC PERFORMANCE Slew Rate Settling Time to 0.1% Unity-Gain Crossover Phase Margin Gain Bandwidth Product -3 dB Closed-Loop Bandwidth Overload Recovery Time NOISE PERFORMANCE Voltage Noise Voltage Noise Density Current Noise Current Noise Density ADA4528-1/ADA4528-2 Symbol Test Conditions/Comments Min Typ PSRR VSY = 2.2 V to 5.5 V -40C TA +125C IO = 0 mA -40C TA +125C 130 127 150 ISY 1.5 Max Unit 1.8 2.2 dB dB mA mA SR tS UGC M GBP f-3dB RL = 10 k, CL = 100 pF, AV = +1 VIN = 4 V step, RL = 10 k, CL = 100 pF, AV = -1 VIN = 10 mV p-p, RL = 10 k, CL = 100 pF, AV = +1 VIN = 10 mV p-p, RL = 10 k, CL = 100 pF, AV = +1 VIN = 10 mV p-p, RL = 10 k, CL = 100 pF, AV = +100 VIN = 10 mV p-p, RL = 10 k, CL = 100 pF, AV = +1 RL = 10 k, CL = 100 pF, AV = -10 0.5 10 4 57 3.4 6.5 50 V/s s MHz Degrees MHz MHz s en p-p en f = 0.1 Hz to 10 Hz, AV = +100 f = 1 kHz, AV = +100 f = 1 kHz, AV = +100, VCM = 4.5 V f = 0.1 Hz to 10 Hz, AV = +100 f = 1 kHz, AV = +100 99 5.9 5.3 10 0.5 nV p-p nV/Hz nV/Hz pA p-p pA/Hz in p-p in Rev. F | Page 5 of 24 ADA4528-1/ADA4528-2 Data Sheet ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE Table 4. Parameter Supply Voltage Input Voltage Input Current1 Differential Input Voltage Output Short-Circuit Duration to GND Storage Temperature Range Operating Temperature Range Junction Temperature Range Lead Temperature (Soldering, 60 sec) 1 Rating 6V VSY 0.3 V 10 mA VSY Indefinite -65C to +150C -40C to +125C -65C to +150C 300C JA is specified for the worst-case conditions, that is, a device soldered in a circuit board for surface-mount packages using a 4-layer JEDEC board. The exposed pad of the LFCSP package is soldered to the board. Table 5. Thermal Resistance Package Type 8-Lead MSOP (RM-8) 8-Lead LFCSP (CP-8-11) 1 The input pins have clamp diodes to the power supply pins. Limit the input current to 10 mA or less whenever input signals exceed the power supply rail by 0.3 V. JA 142 83.5 JC is measured on the top surface of the package. ESD CAUTION Stresses at or above those listed under Absolute Maximum Ratings may cause permanent damage to the product. This is a stress rating only; functional operation of the product at these or any other conditions above those indicated in the operational section of this specification is not implied. Operation beyond the maximum operating conditions for extended periods may affect product reliability. Rev. F | Page 6 of 24 JC 45 48.51 Unit C/W C/W Data Sheet ADA4528-1/ADA4528-2 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS NIC 1 +IN 3 ADA4528-1 TOP VIEW (Not to Scale) V- 4 NIC 7 V+ -IN 2 ADA4528-1 TOP VIEW (Not to Scale) 6 OUT +IN 3 5 NIC V- 4 NOTES 1. NIC = NO INTERNAL CONNECTION. 8 NIC 5 NIC Figure 5. ADA4528-1 Pin Configuration, 8-Lead LFCSP Table 6. ADA4528-1 Pin Function Descriptions Mnemonic NIC -IN +IN V- OUT V+ EPAD 6 OUT NOTES 1. NIC = NO INTERNAL CONNECTION. 2. CONNECT THE EXPOSED PAD TO V- OR LEAVE IT UNCONNECTED. Figure 4. ADA4528-1 Pin Configuration, 8-Lead MSOP Pin No. 1, 5, 8 2 3 4 6 7 7 V+ 09437-102 -IN 2 8 09437-001 NIC 1 Description No Internal Connection. Inverting Input. Noninverting Input. Negative Supply Voltage. Output. Positive Supply Voltage. Exposed Pad (LFCSP Only). Connect the exposed pad to V- or leave it unconnected. Rev. F | Page 7 of 24 ADA4528-1/ADA4528-2 Data Sheet -IN A 2 ADA4528-2 +IN A 3 TOP VIEW (Not to Scale) V- 4 8 V+ 7 OUT B 6 -IN B 5 +IN B 8 V+ -IN A 2 ADA4528-2 7 OUT B +IN A 3 TOP VIEW (Not to Scale) 6 -IN B V- 4 5 +IN B NOTES 1. CONNECT THE EXPOSED PAD TO V- OR LEAVE IT UNCONNECTED. Figure 6. ADA4528-2 Pin Configuration, 8-Lead MSOP Figure 7. ADA4528-2 Pin Configuration, 8-Lead LFCSP Table 7. ADA4528-2 Pin Function Descriptions Pin No. 1 2 3 4 5 6 7 8 Mnemonic OUT A -IN A +IN A V- +IN B -IN B OUT B V+ EPAD 09437-107 OUT A 1 09437-103 OUT A 1 Description Output, Channel A. Inverting Input, Channel A. Noninverting Input, Channel A. Negative Supply Voltage. Noninverting Input, Channel B. Inverting Input, Channel B. Output, Channel B. Positive Supply Voltage. Connect the exposed pad to V- or leave it unconnected. Rev. F | Page 8 of 24 Data Sheet ADA4528-1/ADA4528-2 TYPICAL PERFORMANCE CHARACTERISTICS TA = 25C, unless otherwise noted. 100 100 VSY = 2.5V VCM = VSY/2 90 80 60 50 40 30 70 60 50 40 30 20 20 10 10 0 -1.0 -0.8 -0.6 -0.4 -0.2 0.2 0 VOS (V) 0.4 0.6 0.8 1.0 0 -1.0 Figure 8. Input Offset Voltage Distribution -0.6 -0.2 0 0.2 VOS (V) 0.4 0.6 0.8 1.0 60 VSY = 2.5V VCM = VSY/2 VSY = 5V VCM = VSY/2 50 NUMBER OF AMPLIFIERS 50 40 30 20 40 30 20 09437-003 0 0 3 9 6 12 09437-006 10 10 0 0 15 3 6 9 12 15 TCVOS (nV/C) TCVOS (nV/C) Figure 9. Input Offset Voltage Drift Distribution Figure 12. Input Offset Voltage Drift Distribution 1.0 1.0 VSY = 5V VSY = 2.5V 0.8 0.6 0.6 0.4 0.4 0.2 0.2 0 -0.2 0 -0.2 -0.4 -0.4 -0.6 -0.6 -0.8 -0.8 -1.0 0 0.5 1.5 1.0 2.0 2.5 VCM (V) -1.0 0 1 3 2 4 VCM (V) Figure 10. Input Offset Voltage vs. Common-Mode Voltage Figure 13. Input Offset Voltage vs. Common-Mode Voltage Rev. F | Page 9 of 24 5 09437-007 VOS (V) 0.8 09437-004 VOS (V) -0.4 Figure 11. Input Offset Voltage Distribution 60 NUMBER OF AMPLIFIERS -0.8 09437-005 NUMBER OF AMPLIFIERS 80 70 09437-002 NUMBER OF AMPLIFIERS VSY = 5V VCM = VSY/2 90 ADA4528-1/ADA4528-2 Data Sheet 400 400 VSY = 2.5V VCM = VSY/2 300 IB+ 200 200 100 IB+ 100 IB (pA) IB (pA) VSY = 5V VCM = VSY/2 300 0 -100 0 IB- -100 -200 -300 -300 -25 0 25 50 75 100 125 TEMPERATURE (C) -400 -50 09437-008 -400 -50 -25 0 25 50 75 100 125 TEMPERATURE (C) Figure 14. Input Bias Current vs. Temperature 09437-110 IB- -200 Figure 17. Input Bias Current vs. Temperature 600 600 400 +85C 400 +85C -40C 200 -40C 200 IB (pA) IB (pA) +25C +125C 0 0 +25C -200 +125C -200 -400 -400 -600 0.5 1.0 1.5 2.0 2.5 VCM (V) 0 4 5 OUTPUT VOLTAGE (VOL) TO SUPPLY RAIL (V) 10 VSY = 2.5V 1 100m -40C +25C +85C +125C 1m 0.01 1 0.1 LOAD CURRENT (mA) 10 100 09437-014 OUTPUT VOLTAGE (VOL) TO SUPPLY RAIL (V) 3 Figure 18. Input Bias Current vs. Common-Mode Voltage 10 0.1m 0.001 2 VCM (V) Figure 15. Input Bias Current vs. Common-Mode Voltage 10m 1 Figure 16. Output Voltage (VOL) to Supply Rail vs. Load Current VS = 5V 1 100m 10m -40C +25C +85C +125C 1m 0.1m 0.001 0.01 0.1 1 LOAD CURRENT (mA) 10 100 Figure 19. Output Voltage (VOL) to Supply Rail vs. Load Current Rev. F | Page 10 of 24 09437-017 0 -800 09437-009 -600 09437-012 VSY = 5V VSY = 2.5V Data Sheet ADA4528-1/ADA4528-2 1 100m -40C +25C +85C +125C 1m 0.01 0.1 1 LOAD CURRENT (mA) 10 100m 100 Figure 20. Output Voltage (VOH) to Supply Rail vs. Load Current OUTPUT VOLTAGE (VOL) TO SUPPLY RAIL (mV) RL = 2k 15 10 RL = 10k 5 -25 0 75 50 25 TEMPERATURE (C) 100 125 OUTPUT VOLTAGE (VOH) TO SUPPLY RAIL (mV) 25 RL = 2k 20 15 10 RL = 10k 5 0 -50 -25 0 75 50 25 TEMPERATURE (C) 100 125 0.1m 0.001 0.01 0.1 1 LOAD CURRENT (mA) 10 100 45 VSY = 5V 40 RL = 2k 35 30 25 20 15 RL = 10k 10 5 -25 0 75 50 25 TEMPERATURE (C) 100 125 Figure 24. Output Voltage (VOL) to Supply Rail vs. Temperature 25 VSY = 5V Figure 22. Output Voltage (VOH) to Supply Rail vs. Temperature RL = 2k 20 15 10 RL = 10k 5 0 -50 09437-015 OUTPUT VOLTAGE (VOH) TO SUPPLY RAIL (mV) Figure 21. Output Voltage (VOL) to Supply Rail vs. Temperature VSY = 2.5V 1m 0 -50 09437-016 OUTPUT VOLTAGE (VOL) TO SUPPLY RAIL (mV) VSY = 2.5V 0 -50 10m Figure 23. Output Voltage (VOH) to Supply Rail vs. Load Current 25 20 -40C +25C +85C +125C 09437-019 0.1m 0.001 1 -25 0 75 50 25 TEMPERATURE (C) 100 125 Figure 25. Output Voltage (VOH) to Supply Rail vs. Temperature Rev. F | Page 11 of 24 09437-117 10m VSY = 5V 09437-013 OUTPUT VOLTAGE (VOH) TO SUPPLY RAIL (V) 10 VSY = 2.5V 09437-010 OUTPUT VOLTAGE (VOH) TO SUPPLY RAIL (V) 10 ADA4528-1/ADA4528-2 Data Sheet 2.00 2.0 +125C 1.8 +85C 1.50 ISY PER AMPLIFIER (mA) ISY PER AMPLIFIER (mA) 1.75 +25C 1.25 -40C 1.00 0.75 0.50 VSY = 5.0V 1.6 VSY = 2.5V 1.4 1.2 2.5 3.0 VSY (V) 4.0 3.5 4.5 5.5 5.0 1.0 -50 -25 0 25 Figure 26. Supply Current vs. Supply Voltage 75 100 125 Figure 29. Supply Current vs. Temperature 120 135 120 90 90 90 90 60 45 60 45 135 PHASE 0 VSY = 2.5V RL = 10k CL = 100pF -30 1k GAIN 30 10k -90 10M 1M 100k 0 VSY = 5V RL = 10k CL = 100pF 0 -45 09437-022 0 PHASE (Degrees) GAIN 30 OPEN-LOOP GAIN (dB) PHASE FREQUENCY (Hz) -30 1k -45 10k Figure 30. Open-Loop Gain and Phase vs. Frequency 60 60 VSY = 2.5V VSY = 5V 50 50 AV = 100 CLOSED-LOOP GAIN (dB) AV = 100 40 30 AV = 10 20 10 AV = 1 0 40 30 AV = 10 20 10 AV = 1 0 -10 100 1k 10k 100k 1M FREQUENCY (Hz) 10M 09437-026 -10 -20 10 -90 10M 1M 100k FREQUENCY (Hz) Figure 27. Open-Loop Gain and Phase vs. Frequency CLOSED-LOOP GAIN (dB) OPEN-LOOP GAIN (dB) 50 TEMPERATURE (C) PHASE (Degrees) 2.0 1.5 1.0 09437-025 0.5 Figure 28. Closed-Loop Gain vs. Frequency -20 10 100 1k 10k 100k 1M FREQUENCY (Hz) Figure 31. Closed-Loop Gain vs. Frequency Rev. F | Page 12 of 24 10M 09437-029 0 09437-021 0 09437-024 0.25 Data Sheet ADA4528-1/ADA4528-2 140 160 VSY = 2.5V 140 VSY = 5V VCM = VSY/2 120 120 CMRR (dB) 80 60 VCM = VSY/2 VCM = 1.1V 1M 100k 10k 10M FREQUENCY (Hz) 0 100 09437-126 1k 10k 1k Figure 32. CMRR vs. Frequency 120 VSY = 5V 100 100 80 80 PSRR (dB) 60 PSRR+ 40 60 PSRR+ 40 PSRR- PSRR- 20 20 0 0 10k 100k 1M 10M FREQUENCY (Hz) -20 100 09437-032 1k 1k Figure 33. PSRR vs. Frequency 100k 1M 10M Figure 36. PSRR vs. Frequency 1k 1k VSY = 2.5V VSY = 5V 100 100 10 10 ZOUT () AV = 100 AV = 10 1 AV = 1 AV = 100 AV = 1 0.1 0.01 0.01 1k 10k 100k 1M FREQUENCY (Hz) 10M Figure 34. Closed-Loop Output Impedance vs. Frequency AV = 10 1 0.1 09437-027 ZOUT () 10k FREQUENCY (Hz) 09437-035 PSRR (dB) VSY = 2.5V 0.001 100 10M Figure 35. CMRR vs. Frequency 120 -20 100 1M 100k FREQUENCY (Hz) 09437-031 20 0 100 60 40 40 20 80 0.001 100 1k 10k 100k 1M FREQUENCY (Hz) Figure 37. Closed-Loop Output Impedance vs. Frequency Rev. F | Page 13 of 24 10M 09437-030 CMRR (dB) 100 100 Data Sheet VOLTAGE (1V/DIV) TIME (20s/DIV) TIME (20s/DIV) Figure 41. Large Signal Transient Response VOLTAGE (50mV/DIV) VOLTAGE (50mV/DIV) Figure 38. Large Signal Transient Response VSY = 2.5V VIN = 100mV p-p AV = 1 RL = 10k CL = 100pF 09437-038 VSY = 1.25V VIN = 100mV p-p AV = 1 RL = 10k CL = 100pF TIME (1s/DIV) TIME (1s/DIV) Figure 39. Small Signal Transient Response Figure 42. Small Signal Transient Response 16 16 VSY = 2.5V VIN = 100mV p-p AV = 1 RL = 10k 14 VSY = 5V VIN = 100mV p-p AV = 1 RL = 10k 14 12 10 8 OS- 6 10 8 6 4 4 2 2 0 1 10 100 1000 LOAD CAPACITANCE (pF) OS+ OS- 0 1 10 100 1000 LOAD CAPACITANCE (pF) Figure 40. Small Signal Overshoot vs. Load Capacitance Figure 43. Small Signal Overshoot vs. Load Capacitance Rev. F | Page 14 of 24 09437-036 OVERSHOOT (%) 12 OS+ 09437-033 OVERSHOOT (%) 09437-037 VSY = 2.5V VIN = 4V p-p AV = 1 RL = 10k CL = 100pF 09437-034 VSY = 1.25V VIN = 2V p-p AV = 1 RL = 10k CL = 100pF 09437-041 VOLTAGE (0.5V/DIV) ADA4528-1/ADA4528-2 INPUT 0 VSY = 1.25V AV = -10 VIN = 187.5mV RL = 10k CL = 100pF 0 OUTPUT 1 0 -1 TIME (10s/DIV) -0.5 3 1 OUTPUT 0 -1 TIME (10s/DIV) VSY = 1.25V AV = -10 VIN = 187.5mV RL = 10k CL = 100pF INPUT 0 -0.5 1 OUTPUT 1 -1 OUTPUT VOLTAGE (V) 0 0 -2 TIME (10s/DIV) -1 VSY = 2.5V AV = -10 VIN = 375mV RL = 10k CL = 100pF 09437-039 OUTPUT -2 OUTPUT VOLTAGE (V) INPUT 0 0.5 09437-042 INPUT VOLTAGE (V) Figure 47. Positive Overload Recovery 0.5 -3 TIME (10s/DIV) Figure 45. Negative Overload Recovery Figure 48. Negative Overload Recovery INPUT INPUT VOLTAGE (2V/DIV) VSY = 2.5V RL = 10k CL = 100pF DUT AV = -1 +7.5mV OUTPUT ERROR BAND POST GAIN = 5 0 -7.5mV VSY = 5V RL = 10k CL = 100pF DUT AV = -1 +20mV OUTPUT 0 ERROR BAND POST GAIN = 5 -20mV TIME (10s/DIV) 09437-047 09437-044 VOLTAGE (1V/DIV) INPUT VOLTAGE (V) VSY = 2.5V AV = -10 VIN = 375mV RL = 10k CL = 100pF 2 Figure 44. Positive Overload Recovery -0.5 INPUT 2 OUTPUT VOLTAGE (V) -0.5 0.5 OUTPUT VOLTAGE (V) 0.5 09437-043 INPUT VOLTAGE (V) ADA4528-1/ADA4528-2 09437-040 INPUT VOLTAGE (V) Data Sheet TIME (10s/DIV) Figure 46. Positive Settling Time to 0.1% Figure 49. Positive Settling Time to 0.1% Rev. F | Page 15 of 24 ADA4528-1/ADA4528-2 Data Sheet VSY = 2.5V RL = 10k CL = 100pF DUT AV = -1 +7.5mV OUTPUT 0 ERROR BAND POST GAIN = 5 INPUT VOLTAGE (2V/DIV) VOLTAGE (1V/DIV) INPUT VSY = 5V RL = 10k CL = 100pF DUT AV = -1 +20mV ERROR BAND POST GAIN = 5 OUTPUT 0 -7.5mV TIME (10s/DIV) TIME (10s/DIV) Figure 50. Negative Settling Time to 0.1% Figure 53. Negative Settling Time to 0.1% 100 10 1 10 100 1k 10k FREQUENCY (Hz) VSY = 5V AV = 100 VCM = VSY/2 10 1 1 1k 10k Figure 54. Voltage Noise Density vs. Frequency 10 CURRENT NOISE DENSITY (pA/Hz) VSY = 2.5V AV = 100 VCM = VSY/2 1 10 100 1k 10k FREQUENCY (Hz) 100k 09437-150 1 Figure 52. Current Noise Density vs. Frequency VSY = 5V AV = 100 VCM = VSY/2 1 0.1 1 10 100 1k 10k FREQUENCY (Hz) Figure 55. Current Noise Density vs. Frequency Rev. F | Page 16 of 24 100k 09437-153 10 CURRENT NOISE DENSITY (pA/Hz) 100 FREQUENCY (Hz) Figure 51. Voltage Noise Density vs. Frequency 0.1 10 09437-049 VOLTAGE NOISE DENSITY (nV/Hz) VSY = 2.5V AV = 100 VCM = VSY/2 09437-046 VOLTAGE NOISE DENSITY (nV/Hz) 100 1 09437-048 09437-045 -20mV Data Sheet ADA4528-1/ADA4528-2 VSY = 5V AV = 100 VCM = VSY/2 TIME (1s/DIV) TIME (1s/DIV) Figure 59. 0.1 Hz to 10 Hz Noise 10 1 1 0.1 0.001 0.001 0.1 VSY = 5V AV = 1 f = 1kHz RL = 10k 0.01 VSY = 2.5V AV = 1 f = 1kHz RL = 10k 0.01 0.1 1 10 AMPLITUDE (V p-p) 0.001 0.001 0.01 0.1 1 10 AMPLITUDE (V p-p) Figure 57. THD + N vs. Amplitude 09437-155 THD + N (%) 10 09437-152 Figure 60. THD + N vs. Amplitude 1 1 VSY = 2.5V AV = 1 RL = 10k 80kHz LOW-PASS FILTER VIN = 2V p-p VSY = 5V AV = 1 RL = 10k 80kHz LOW-PASS FILTER VIN = 2V p-p THD + N (%) 0.1 THD + N (%) 0.1 0.001 10 0.01 100 1k 10k FREQUENCY (Hz) 100k 09437-056 0.01 Figure 58. THD + N vs. Frequency 0.001 10 100 1k 10k FREQUENCY (Hz) Figure 61. THD + N vs. Frequency Rev. F | Page 17 of 24 100k 09437-057 THD + N (%) Figure 56. 0.1 Hz to 10 Hz Noise 0.01 09437-053 09437-050 INPUT VOLTAGE (20nV/DIV) INPUT VOLTAGE (20nV/DIV) VSY = 2.5V AV = 100 VCM = VSY/2 ADA4528-1/ADA4528-2 Data Sheet 0 0 VSY = 2.5V RL = 2k AV = -100 CHANNEL SEPERATION (dB) -40 VIN = 0.5V p-p VIN = 1V p-p VIN = 1.2V p-p -80 -100 -120 -140 100 -40 -60 VIN = 1V p-p VIN = 2V p-p VIN = 2.4V p-p -80 -100 -120 1k 10k FREQUENCY (Hz) 100k Figure 62. Channel Separation vs. Frequency -140 100 1k 10k FREQUENCY (Hz) Figure 63.Channel Separation vs. Frequency Rev. F | Page 18 of 24 100k 09437-263 -60 VSY = 5V RL = 2k AV = -100 -20 09437-262 CHANNEL SEPERATION (dB) -20 Data Sheet ADA4528-1/ADA4528-2 APPLICATIONS INFORMATION Offset voltage errors due to common-mode voltage swings and power supply variations are also corrected by the chopping technique, resulting in a typical CMRR figure of 158 dB and a PSRR figure of 150 dB at 2.5 V supply voltage. The ADA4528-1/ ADA4528-2 have low broadband noise of 5.6 nV/Hz (at f = 1 kHz, AV = +100, and VSY = 2.5 V) with no 1/f noise component. These features are ideal for amplification of low level signals in dc or subhertz high precision applications. RAIL-TO-RAIL INPUT AND OUTPUT The ADA4528-1/ADA4528-2 feature rail-to-rail input and output with a supply voltage from 2.2 V to 5.5 V. Figure 64 shows the input and output waveforms of the ADA45281/ADA4528-2 configured as a unity-gain buffer with a supply voltage of 2.5 V and a resistive load of 10 k. With an input voltage of 2.5 V, the ADA4528-1/ADA4528-2 allow the output to swing very close to both rails. Additionally, the devices do not exhibit phase reversal. 3 1 VOLTAGE (V) For more information about the chopper architecture of the ADA4528-1/ADA4528-2, see the AN-1114 Application Note, Lowest Noise Zero-Drift Amplifier Has 5.6 nV/Hz Voltage Noise Density. 0 -1 INPUT PROTECTION -2 The ADA4528-1/ADA4528-2 have internal ESD protection diodes that are connected between the inputs and each supply rail. These diodes protect the input transistors in the event of electrostatic discharge and are reverse biased during normal operation. This protection scheme allows voltages as high as approximately 300 mV beyond the rails to be applied at the input of either terminal without causing permanent damage (see Table 4 in the Absolute Maximum Ratings section). When either input exceeds one of the supply rails by more than 300 mV, the ESD diodes become forward biased and large amounts of current begin to flow through them. Without current limiting, this excessive fault current causes permanent damage to the device. If the inputs are subjected to overvoltage conditions, insert a resistor in series with each input to limit the input current to 10 mA maximum. However, consider the resistor thermal noise effect on the entire circuit. For example, at a 5 V supply voltage, the broadband voltage noise of the ADA4528-1/ADA4528-2 is approximately 6 nV/Hz (at unity gain). A 1 k resistor has thermal noise of 4 nV/Hz. Adding a 1 k resistor at the noninverting input pin increases the total noise by 30% root sum square (rss). VIN VOUT 2 VSY = 2.5V AV = 1 RL = 10k -3 TIME (200s/DIV) 09437-059 The ADA4528-1/ADA4528-2 are precision, ultralow noise, zero-drift operational amplifiers that feature a patented chopping technique. This chopping technique offers ultralow input offset voltage of 0.3 V typical and input offset voltage drift of 0.002 V/C typical. Figure 64. Rail-to-Rail Input and Output NOISE CONSIDERATIONS For more information about the noise characteristics of the ADA4528-1/ADA4528-2, see the AN-1114 Application Note, Lowest Noise Zero-Drift Amplifier Has 5.6 nV/Hz Voltage Noise Density. 1/f Noise 1/f noise, also known as pink noise or flicker noise, is inherent in semiconductor devices and increases as frequency decreases. At low frequency, 1/f noise is a major noise contributor and causes a significant output voltage offset when amplified by the noise gain of the circuit. However, the ADA4528-1/ADA4528-2 eliminate the 1/f noise internally, thus making these devices an excellent choice for dc or subhertz high precision applications. The 0.1 Hz to 10 Hz amplifier voltage noise is only 97 nV p-p (AV = +100) at a supply voltage of 2.5 V. The low frequency 1/f noise, which appears as a slow varying offset to the ADA4528-1/ADA4528-2, is greatly reduced by the chopping technique. This reduction in 1/f noise allows the ADA4528-1/ADA4528-2 to have much lower noise at dc and low frequency compared to standard low noise amplifiers that are susceptible to 1/f noise. Figure 51 and Figure 54 show the voltage noise density of the amplifier with no 1/f noise. Rev. F | Page 19 of 24 ADA4528-1/ADA4528-2 Data Sheet Source Resistance Voltage Noise Density with Different Gain Configurations With 5.6 nV/Hz of broadband noise at 1 kHz (VSY = 2.5 V and AV = +100), the ADA4528-1/ADA4528-2 are among the lowest noise zero-drift amplifiers currently available in the industry. Therefore, it is important to carefully select the input source resistance to maintain a total low noise. Figure 65 shows the voltage noise density vs. closed-loop gain of a zero-drift amplifier from a leading competitor. The voltage noise density of the amplifier increases from 11 nV/Hz to 21 nV/Hz as the closed-loop gain decreases from 1000 to 1. 24 These uncorrelated noise sources can be summed up in a root sum squared (rss) manner using the following equation: en total = [en2 + 4 kTRS + (in x RS)2]1/2 where: en is the input voltage noise of the amplifier (V/Hz). k is the Boltzmann's constant (1.38 x 10-23 J/K). T is the temperature in Kelvin (K). RS is the total input source resistance (). in is the input current noise of the amplifier (A/Hz). VSY = 5V f = 100Hz COMPETITOR A 20 16 12 8 4 09437-061 VOLTAGE NOISE DENSITY (nV/Hz) The total input referred broadband noise (en total) from any amplifier is primarily a function of three types of noise: input voltage noise, input current noise, and thermal (Johnson) noise from the external resistors. 0 1 100 10 1000 CLOSED-LOOP GAIN (V/V) Figure 65. Competitor A: Voltage Noise Density vs. Closed-Loop Gain Figure 66 shows the voltage noise density vs. frequency of the ADA4528-1/ADA4528-2 for three different gain configurations. The ADA4528-1/ADA4528-2 offer a constant input voltage noise density of 6 nV/Hz to 7 nV/Hz, regardless of the gain configuration. The total equivalent rms noise over a specific bandwidth is expressed as en,rms = en total x BW where BW is the bandwidth in hertz. 100 10 AV = 1 AV = 10 AV = 100 1 1 10 100 1k 10k FREQUENCY (Hz) Figure 66. Voltage Noise Density vs. Frequency with Different Gain Configurations Rev. F | Page 20 of 24 09437-062 With a low source resistance of RS < 1 k, the voltage noise of the amplifier dominates. As source resistance increases, the thermal noise of RS dominates. As the source resistance increases further, where RS > 100 k, the current noise becomes the main contributor to the total input noise. A good selection table for low noise op amps can be found in the AN-940 Application Note, Low Noise Amplifier Selection Guide for Optimal Noise Performance. VSY = 5V VCM = VSY/2 VOLTAGE NOISE DENSITY (nV/Hz) This analysis is valid for broadband noise calculation. If the bandwidth of concern includes the chopping frequency, more complicated calculations must be made to include the effect of the noise energy spectrum at the chopping frequency (see the Residual Voltage Ripple section). Data Sheet ADA4528-1/ADA4528-2 Residual Voltage Ripple 3.5 3.0 ISY PER DUAL AMPLIFIER (mA) Although autocorrection feedback (ACFB) suppresses the chopping related voltage ripple, higher noise spectrum exists at the chopping frequency and its harmonics due to the remaining ripple. Figure 67 shows the voltage noise density of the ADA4528-1/ ADA4528-2 configured in unity gain. A noise energy spectrum of 50 nV/Hz can be seen at the chopping frequency of 200 kHz. This noise energy spectrum is significant when the op amp has a closed-loop frequency that is higher than the chopping frequency. 2.0 1.5 1.0 0.5 VSY = 5V AV = 1 VCM = VSY/2 0 0 0.5 1.0 1.5 2.0 2.5 3.0 VSY (V) 3.5 4.0 4.5 5.0 09437-066 VOLTAGE NOISE DENSITY (nV/Hz) 100 2.5 Figure 69. Supply Current vs. Supply Voltage (Voltage Follower) Figure 70 and Figure 71 show the ADA4528-2 configured as comparators, with 1k resistors in series with the input pins. Figure 72 shows the supply currents for both configurations. Supply currents increase slightly to 3.2 mA per dual amplifier at 5 V of supplies. 10 10 100 1k 10k 100k 1M FREQUENCY (Hz) 10M A1 1k Figure 67. Voltage Noise Density vs. Frequency To further suppress the noise at the chopping frequency, it is recommended that a post filter be placed at the output of the amplifier. For more information about residual voltage ripple, see the AN-1114 Application Note, Lowest Noise Zero-Drift Amplifier Has 5.6 nV/Hz Voltage Noise Density. ISY+ ADA4528-2 VOUT 1/2 1k ISY- A2 Figure 68 shows the ADA4528-2 configured as a voltage follower with an input voltage that is always kept at midpoint of the power supplies. The same configuration is applied to the unused channel. A1 and A2 indicate the placement of ammeters to measure supply current. As shown in Figure 69, as expected, in normal operating condition, ISY+ = ISY- = 3 mA for the dual ADA4528-2 at 5 V of supplies. +VSY 09437-067 COMPARATOR OPERATION -VSY Figure 70. Comparator A +VSY A1 ISY+ 1k ADA4528-2 VOUT 1/2 A1 ISY+ 1k 1k ADA4528-2 ISY- -VSY VOUT 1/2 A2 Figure 71. Comparator B A2 ISY- -VSY 09437-065 1k Figure 68. Voltage Follower Rev. F | Page 21 of 24 09437-068 1 09437-063 +VSY 1 ADA4528-1/ADA4528-2 Data Sheet dissimilar metals and is a function of the temperature of the junction. The most common metallic junctions on a circuit board are solder-to-board trace and solder-to-component lead. 3.5 2.5 Figure 73 shows a cross section of a surface-mount component soldered to a PCB. A variation in temperature across the board (where TA1 TA2) causes a mismatch in the Seebeck voltages at the solder joints, thereby resulting in thermal voltage errors that degrade the ultralow offset voltage performance of the ADA4528-1/ADA4528-2. 2.0 1.5 1.0 0.5 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 VSY (V) 09437-069 COMPONENT LEAD VSC1 + SURFACE-MOUNT COMPONENT + VTS1 + VSC2 SOLDER + VTS2 Figure 72. Supply Current vs. Supply Voltage (Comparator A and Comparator B) PC BOARD For more details on op amps as comparators, refer to the AN-849 Application Note, Using Op Amps as Comparators. TA1 COPPER TRACE PRINTED CIRCUIT BOARD LAYOUT The ADA4528-1/ADA4528-2 are high precision devices with ultralow offset voltage and noise. Therefore, care must be taken in the design of the printed circuit board (PCB) layout to achieve the optimum performance of the ADA4528-1/ADA4528-2 at board level. To avoid leakage currents, keep the surface of the board clean and free of moisture. Coating the board surface creates a barrier to moisture accumulation and reduces parasitic resistance on the board. To minimize power supply disturbances caused by output current variation, properly bypass the power supplies and keep the supply traces short. Connect bypass capacitors as close as possible to the device supply pins. Stray capacitances are a concern at the outputs and the inputs of the amplifier. It is recommended that signal traces be kept at a distance of at least 5 mm from supply lines to minimize coupling. TA2 IF TA1 TA2, THEN VTS1 + VSC1 VTS2 + VSC2 09437-154 ISY PER DUAL AMPLIFIER (mA) 3.0 Figure 73. Mismatch in Seebeck Voltages Causes Seebeck Voltage Error To minimize these thermocouple effects, orient resistors so that heat sources warm both ends equally. Where possible, the input signal paths must contain matching numbers and types of components to match the number and type of thermocouple junctions. For example, dummy components, such as zero value resistors, can be used to match the thermoelectric error source (real resistors in the opposite input path). Place matching components in close proximity and orient them in the same manner to ensure equal Seebeck voltages, thus canceling thermal errors. Additionally, use leads of equal length to keep thermal conduction in equilibrium. Keep heat sources on the PCB as far away from the amplifier input circuitry as practical. It is highly recommended that a ground plane be used. A ground plane helps to distribute heat throughout the board, maintains a constant temperature across the board, and reduces EMI noise pickup. A potential source of offset error is the Seebeck voltage on the circuit board. The Seebeck voltage occurs at the junction of two Rev. F | Page 22 of 24 Data Sheet ADA4528-1/ADA4528-2 OUTLINE DIMENSIONS 3.20 3.00 2.80 8 3.20 3.00 2.80 1 5.15 4.90 4.65 5 4 PIN 1 IDENTIFIER 0.65 BSC 0.95 0.85 0.75 15 MAX 1.10 MAX 0.40 0.25 6 0 0.80 0.55 0.40 0.23 0.09 10-07-2009-B 0.15 0.05 COPLANARITY 0.10 COMPLIANT TO JEDEC STANDARDS MO-187-AA Figure 74. 8-Lead Mini Small Outline Package [MSOP] (RM-8) Dimensions shown in millimeters DETAIL A (JEDEC 95) 2.44 2.34 2.24 3.10 3.00 SQ 2.90 0.50 BSC 8 5 PIN 1 INDEX AREA TOP VIEW PKG-005136 SEATING PLANE SIDE VIEW 0.30 0.25 0.20 4 1 0.20 MIN BOTTOM VIEW 0.05 MAX 0.02 NOM COPLANARITY 0.08 0.203 REF FOR PROPER CONNECTION OF THE EXPOSED PAD, REFER TO THE PIN CONFIGURATION AND FUNCTION DESCRIPTIONS SECTION OF THIS DATA SHEET COMPLIANT TO JEDEC STANDARDS MO-229-W3030D-4 Figure 75. 8-Lead Lead Frame Chip Scale Package [LFCSP] 3 mm x 3 mm Body and 0.75 mm Package Height (CP-8-11) Dimensions shown in millimeters Rev. F | Page 23 of 24 PIN 1 INDIC ATOR AREA OPTIONS (SEE DETAIL A) 02-10-2017-C 0.50 0.40 0.30 0.80 0.75 0.70 1.70 1.60 1.50 EXPOSED PAD ADA4528-1/ADA4528-2 Data Sheet ORDERING GUIDE Model 1 ADA4528-1ARMZ ADA4528-1ARMZ-R7 ADA4528-1ARMZ-RL ADA4528-1ACPZ-R2 ADA4528-1ACPZ-R7 ADA4528-1ACPZ-RL ADA4528-2ARMZ ADA4528-2ARMZ-R7 ADA4528-2ARMZ-RL ADA4528-2ACPZ-R7 ADA4528-2ACPZ-RL 1 Temperature Range -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C Package Description 8-Lead Mini Small Outline Package [MSOP] 8-Lead Mini Small Outline Package [MSOP] 8-Lead Mini Small Outline Package [MSOP] 8-Lead Lead Frame Chip Scale Package [LFCSP] 8-Lead Lead Frame Chip Scale Package [LFCSP] 8-Lead Lead Frame Chip Scale Package [LFCSP] 8-Lead Mini Small Outline Package [MSOP] 8-Lead Mini Small Outline Package [MSOP] 8-Lead Mini Small Outline Package [MSOP] 8-Lead Lead Frame Chip Scale Package [LFCSP] 8-Lead Lead Frame Chip Scale Package [LFCSP] Z = RoHS Compliant Part. (c)2011-2017 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D09437-0-8/17(F) Rev. F | Page 24 of 24 Package Option RM-8 RM-8 RM-8 CP-8-11 CP-8-11 CP-8-11 RM-8 RM-8 RM-8 CP-8-11 CP-8-11 Branding A2R A2R A2R A2R A2R A2R A32 A32 A32 A32 A32