TMP36GZ TMP36GT9Z Temperature Sensor TO-92 (AD-Original)

Description

The TMP36GT9Z is a low-voltage, precision analog temperature sensor from Analog Devices with an output voltage linearly proportional to Celsius temperature. Unlike the LM35, the TMP36 includes a 500mV offset at 0°C, which allows it to measure negative temperatures without requiring a negative supply rail . The output rises by 10mV per °C, so at 25°C the output is 750mV.

The sensor operates from a single supply of 2.7V to 5.5V, making it directly compatible with both 5V Arduino boards and 3.3V systems like ESP32 . It draws less than 50µA quiescent current, with self-heating of less than 0.1°C in still air . The low output impedance simplifies interfacing to ADC inputs without buffering. The TMP36 is specified for -40°C to +125°C, with typical accuracy of ±1°C at 25°C and ±2°C over the full range .

Critical limitations: The TO-92 package has poor thermal coupling to ambient air. For accurate surface temperature measurement, the leads should be thermally bonded to the surface. The TMP36 is functionally compatible with the LM50, not the LM35—using LM35 conversion math will produce incorrect readings .

Features

• Direct Celsius Output with 500mV Offset: Allows negative temperature measurement without a negative supply .

• Wide Supply Range (2.7V–5.5V): Compatible with 5V Arduino and 3.3V systems .

• Low Power Consumption: <50µA quiescent current, minimizing self-heating .

• Low Self-Heating: <0.1°C in still air .

• Low-Impedance Output: Suitable for direct ADC connection .

• ±1°C Typical Accuracy at 25°C: ±2°C over the full -40°C to +125°C range .

• Shutdown Function: Reduces current to 0.5µA maximum .

• TO-92 Package (TMP36GT9Z): Standard 3-pin through-hole for easy prototyping .

Technical Specifications