Rainbow Electronics DS600 User Manual

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www.maxim-ic.com
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 user­programmable 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
2.7V to 5.5V
DS600
DS600
±0.5 Accurate Analog-Output
Temperature Senso
FEATURES
 ±0.5°C Accuracy (-20°C to +100°C)  ±0.75°C Accuracy Over Entire Temperature
Range of(-40°C to +125°C
 Requires No External Components  6.45mV/°C Output Gain with 509mV Offset at
0°C
 2.7V to 5.5V Supply Voltage Range  User-Programmable Thermostat Function  Shutdown Function Puts Device into a Low-
Power Standby Mode
 Exposed Pad 8-Pin µSOP Package for Quick
Thermal Response
ORDERING INFORMATION
PART TEMP RANGE PIN-PACKAGE
DS600U -40°C to +125°C 8 µSOP
DS600U/T&R -40°C to +125°C
PIN CONFIGURATION
TOP VIEW
8 µSOP Tape-and-Reel
VTH
OUT
GND
CTG
SD
TO/FROM
C
V
DD
2
3
EXPOSED PAD µSOP
V
TO
TO
OUT
GND
CTG
7
6
D
V
TH
.
REV: 040804
VDD
TO
O
V
DALLAS is a registered trademark of Dallas Semiconductor Corp. MAXIM is a registered trademark of Maxim Integrated Products, Inc.
Note: Some revisions of this device may incorporate deviations from published spec ifications known as errata. Multiple revisions of any device may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata
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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 Storage Temperature Range Soldering Temperature (10s)
-40°C to +125°C
-55°C to +125°C +260°C (See IPC/JEDEC J-STD-020A)
Reflow Oven Temperature +220°C
Stresses beyond those listed under “Abs olute Maximum Ratings” may caus e permanent damage to the device. Thes e are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operati onal sect ions 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 T
Output Gain
V
DC Offset VOS 0°C 509 mV
OUT
ERR
V/T
Low-Level Input Voltage (SD) VIL -0.5 0.3 x VDD V
High-Level Input Voltage (SD) VIH 0.7 x VDD V
SD Input Capacitance CSD 5 pF
-20°C to +100°C ±0.5
-40°C to +125°C ±0.75
°C
6.45 mV/°C
+ 0.5 V
DD
VTH Input Capacitance C
Low-Level Output Voltage
TO)
(TO,
5 pF
VTH
4mA sink current 0 0.4 V
V
OL
Supply Current IDD 140 µA
Shutdown Current ISD 2.5 µA
Input Current (VTH) ITH 0.01 1 µA
Input Resistance (VTH) RTH 5 M
Leakage Current (SD) IL 0.01 1 µA
External Load Capacitance on V
V
V
Output Impedance (V
OUT
Source Current I
OUT
Sink Current I
OUT
) R
OUT
Power-Up Time t
50 pF
C
EL
10 µA
OSO
10 µA
OSI
100
OUT
POWERUP
10 ms
Nonlinearity ±0.2 °C
Comparator Offset ±3 mV
Comparator Response Time t
20 ms
COMP
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