GENERAL DESCRIPTION
The DS600 is a ±0.5°C accurate analog-output
temperature sensor. This accuracy is valid over its
entire operating voltage range of 2.7V to 5.5V and
the wide temperature range of -20°C to +100°C. The
DS600 can also act as a thermostat, with user-
programmable trip points. A shutdown mode enables
the DS600 to be placed in a low-power standby state.
The DS600 is available in an 8-pin µSOP package.
APPLICATIONS
Cold-Junction Thermocouple Compensation
Portable Medical Equipment
Thermally Sensitive Systems that Require a High-
Accuracy Analog-Output Temperature Sensor
TYPICAL OPERATING CIRCUIT
BENEFITS AND FEATURES
Accurate Temperature Monitoring Easily Added
to Any System
o
±0.5°C Accuracy (-20°C to +100°C)
o
±0.75°C Accuracy Over Entire Temperature
Range of -40°C to +125°C
o
6.45mV/°C Output Gain with 509mV Offset at 0°C
o
Requires No External Components
o User-Programmable Thermostat Function
Used In a Wide Variety of Applications
o Power Supply Range (2.7V to 5.5V)
Reacts Quickly to Temperature Shifts
o Exposed Pad 8-Pin µSOP Package for Quick
Thermal Response
Shutdown Function Puts Device into a Low-
Power Standby Mode
ORDERING INFORMATION
PART
TEMP RANGE
PIN-PACKAGE
DS600U -40°C to +125°C
Exposed Pad
8 µSOP
DS600U+ -40°C to +125°C
Exposed Pad
8 µSOP
DS600U/T&R -40°C to +125°C
Exposed Pad
8 µSOP
Tape-and-Reel
DS600U+/T&R -40°C to +125°C
Exposed Pad
8 µSOP
Tape-and-Reel
+ Denotes lead-free package.
PIN CONFIGURATION
PAD
VDD
TO
VOUT
GND
CTG
SD
VTH
TO
DS600
±0.5 Accurate Analog-
Output
Temperature Sensor
TOP VIEW
PAD
VDD
GND
TO
TO
V
OUT
VTH
SD
CTG
2.7V to 5.5V
TO/FROM
µC
DS600
PAD
8-Pin
µ
SOP Package
Exposed Pad
1 of 5 19-7538; Rev 3; 3/15
Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may
be simultaneously available through various sales channels. For information about device errata, click here: www.maximintegrated.com/errata.
DS600 ±0.5°C Accurate Analog-Output Temperature Sensor
ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin (except CTG) Relative to Ground
-0.5V to +6.0V
Voltage Range on CTG Relative to Ground
-0.5 to +0.5V
Operating Temperature Range
-40°C to +125°C
Storage Temperature Range
-55°C to +125°C
Soldering Temperature (10s)
+260°C (See IPC/JEDEC J-STD-020A)
Reflow Oven Temperature
+220°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only,
and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is
not implied. Exposure to the absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
(VCC = 2.7V to 5.5V, TA = -40°C to +125°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage
VDD
2.7
5.5
V
Thermometer Error TERR
-20°C to +100°C
±0.5
°C
-40°C to +125°C
±0.75
Output Gain ∆V/∆T 6.45 mV/°C
VOUT DC Offset VOS 0°C 509 mV
Low-Level Input Voltage (SD)
VIL
-0.5
0.3 x VDD
V
High-Level Input Voltage (SD) VIH 0.7 x VDD VDD + 0.5 V
SD Input Capacitance CSD 5 pF
VTH Input Capacitance CVTH 5 pF
Low-Level Output Voltage
(TO, TO)
VOL 4mA sink current 0 0.4 V
Supply Current IDD 140 µA
Shutdown Current ISD 2.5 µA
Input Current (VTH) ITH 0.01 1 µA
Input Resistance (VTH) RTH 5 MΩ
Leakage Current (SD) IL 0.01 1 µA
External Load Capacitance
on VOUT
CEL 50 pF
VOUT Source Current IOSO 10 µA
VOUT Sink Current IOSI 10 µA
Output Impedance (VOUT) ROUT 100 Ω
Power-Up Time tPOWERUP 10 ms
Nonlinearity ±0.2 °C
Comparator Offset ±3 mV
Comparator Response Time tCOMP 20 ms
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DS600 ±0.5°C Accurate Analog-Output Temperature Sensor
PIN DESCRIPTION
PIN NAME FUNCTION
1
VDD
Supply Voltage. 2.7V to 5.5V
2 TO
Active-High Thermostat Output. Open-drain output transitions from low to high when the output
voltage exceeds VTH. In shutdown mode, (SD = 1), TO is low.
3 TO
Active-Low Thermostat Output. Open-drain output transitions from high to low when the output
voltage exceeds VTH. In shutdown mode, (SD = 1),
TO
is high.
4 VOUT
Temperature Output. Outputs a voltage that is proportional to the die temperature in degrees
centigrade. In shutdown mode, this pin goes high-Z.
5 VTH
Thermostat Trip Voltage. User-selectable voltage that sets the thermostat trip-point temperature.
TO and TO are asserted when VOUT crosses this voltage. (No on-chip hysteresis is present).
6 SD
Shutdown. Power consumption and thermal sensor function are controlled through SD. This pin
functions as an active-high input pin. Driving this pin high puts the device in a low-power state and
discontinues thermal sensing.
7
CTG
Must be connected to GND.
8
GND
Ground.
PAD
PAD. Connect to GND or float. DO NOT CONNECT TO SUPPLY. The exposed pad is the best
way to conduct temperature into the package. Connecting PAD to a ground plane can assist in
properly measuring the temperature of the circuit board.
Figure 1. Block Diagram
TEMPERATURE MEASUREMENT
The DS600 analog temperature sensor measures it own temperature and provides these measurements to the
user in the form of an output voltage, VOUT, that is proportional to degrees centigrade. The output voltage
characteristic is factory-calibrated for a typical output gain (∆V/∆T) of +6.45mV/°C and a DC offset (VOS) of 509mV.
Its operating temperature range is -40°C to +125°C, corresponding to an output voltage range of 251mV to
1315mV. (VOUT = Device Temperature (°C) x ∆V/∆T + VOS). The DS600 has ±0.5°C accuracy over a -20°C to
+100°C temperature range and over the full 2.7V to 5.5V voltage range. Because the output voltage is positive for
the entire temperature range, there is no need for a negative supply.
Figure 2 shows the output voltage characteristic for the DS600.
TEMPERATURE
SENSOR
VOUT
VTH
TO
TO
SD
VDD
GND
CONTROL
LOGIC
LEVEL-SHIFT
BUFFER
THERMOSTAT
COMPARATOR
2.7V to 5.5V
DS600
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DS600 ±0.5°C Accurate Analog-Output Temperature Sensor
Figure 2. Output Voltage Characteristic
THERMOSTAT OPERATION
The DS600 can also be used as a thermostat with either an active-high (TO) or active-low (TO) output. To function
as a thermostat, a precise voltage reference equal to the desired threshold must be applied to the VTH pin. When
the temperature with the equivalent voltage value is reached (voltage on VOUT = voltage on VTH), thermostat outputs
TO and TO become active. Figure 3 shows an example thermostat application circuit.
Figure 3. Thermostat Application Circuit
80
0
100
-40
120
60
40
20
-20
0.2
0.6
1
1.4
DS600 OUTPUT CHARACTERISTIC
TEMPERATURE (°C)
V
OUT
(V)
509mV
2.7V to 5.5V
VDD
GND
TO
TO
V
OUT
VTH
SD
CTG
500 KΩ
MAX6007A
DS600
PAD
4 of 5
DS600 ±0.5°C Accurate Analog-Output Temperature Sensor
PACKAGE INFORMATION
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown
in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000
©2015 Maxim Integrated Products, Inc. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
For the latest package outline information, go to www.maximintegrated.com/DallasPackInfo.
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