深圳市中立信电子科技有限公司

TMP04FSZ

板上安装温度传感器 SERIAL DIGITAL OUTPUT THERMOMETER

Serial Digital Output Thermometers

GENERAL DESCRIPTION TMP04FSZ

The TMP03/TMP04 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 digital output of the TMP04 is CMOS/TTL

compatible, and is easily interfaced to the serial inputs of most

popular microprocessors. The open-collector output of the

TMP03 is capable of sinking 5 mA. The TMP03 is best suited

for systems requiring isolated circuits utilizing optocouplers or

isolation transformers.

FEATURES TMP04FSZ

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 TMP04FSZ

Isolated Sensors

Environmental Control Systems

Computer Thermal Monitoring

Thermal Protection

Industrial Process Control

Power System Monitors