Hot-selling and scarce TMP35FS Low Voltage Temperature Sensors IC SOP8 spot stock

Product Descriptions

The TMP35, TMP36, and TMP37 are low voltage, precision centigrade temperature sensors. They provide a voltage output that is linearly proportional to the Celsius (Centigrade) temperature. The TMP35/TMP36/TMP37 do not require any external calibration to provide typical accuracies of ±1°C at+25°C and ±2°C over the –40°C to +125°C temperature range. 

The low output impedance of the TMP35/TMP36/TMP37 and its linear output and precise calibration simplify interfacing to temperature control circuitry and A/D converters. All three devices are intended for single-supply operation from 2.7 V to5.5 V maximum. Supply current runs well below 50 µA, providing very low self-heating—less than 0.1°C in still air. In addition, a shutdown function is provided to cut supply current to less than 0.5 µA.

The TMP35 is functionally compatible with the LM35/LM45 and provides a 250 mV output at 25°C. The TMP35 reads temperatures from 10°C to 125°C. The TMP36 is specified from –40°C to+125°C, provides a 750 mV output at 25°C, and operates to+125°C from a single 2.7 V supply. The TMP36 is functionally compatible with the LM50 . Both the TMP35 and TMP36 have an output scale factor of 10 mV/°C. The TMP37 is intended for applications over the range 5°C to 100°C and provides an output scale factor of 20 mV/°C. The TMP37 provides a 500 mV output at 25°C. Operation extends to 150°C with reduced accuracy for all devices when operating from a 5 V supply.

The TMP35/TMP36/TMP37 are all available in low cost 3-lead TO-92, SOIC-8, and 5-lead SOT-23 surface-mount packages.

Product Features

Low Voltage Operation (2.7 V to 5.5 V)

Calibrated Directly in C

10 mV/C Scale Factor (20 mV/C on TMP37)

2C Accuracy over Temperature (Typ)

0.5C Linearity (Typ)

Stable with Large Capacitive Loads

Specified –40C to +125C, Operation to +150C

Less than 50 A Quiescent Current

Shutdown Current 0.5 A Max

Low Self-Heating

Product Applications

Environmental Control Systems

Thermal Protection

Industrial Process Control

Fire Alarms

Power System Monitors

CPU Thermal Management

Product Photos

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