TMP03FS

FEATURES
Low Cost 3-Pin Package
Modulated Serial Digital Output
 Proportional to Temperature
±1.5C Accuracy (typ) from –25C to +100C
Specified –40C to +100C, Operation to 150C
Power Consumption 6.5 mW Max at 5 V
Flexible Open-Collector Output on TMP03
CMOS/TTL-Compatible Output on TMP04
Low Voltage Operation (4.5 V to 7 V)

APPLICATIONS
Isolated Sensors
Environmental Control Systems
Computer Thermal Monitoring
Thermal Protection
Industrial Process Control
Power System Monitors
GENERAL DESCRIPTION
The TMP03FS are monolithic temperature detectors that generate a modulated serial digital output that varies in direct proportion to the temperature of the device. An onboard sensor generates a voltage precisely proportional to absolute temperature which is compared to an internal voltage reference and input to a precision digital modulator. The ratiometric encoding format of the serial digital output is independent of the clock drift errors common to most serial modulation techniques such as voltage-to-frequency converters. Overall accuracy is ±1.5°C (typical) from –25°C to +100°C, with excellent transducer linearity. The open-collector output of the TMP03FS is capable of sinking 5 mA. The TMP03FS is best suited for systems requiring isolated circuits utilizing optocouplers or isolation transformers. The TMP03FS is specified for operation at supply voltages from 4.5 V to 7 V. Operating from 5 V, supply current (unloaded) is less than 1.3 mA.
The TMP03FS are rated for operation over the –40°C to +100°C temperature range in the low cost TO-92, SO-8, and TSSOP-8 surface mount packages. Operation extends to 150°C with reduced accuracy.

Feature

Applications

(Picture: Pinout)