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TMP36GT9Z

Analog temp sensor, 10mV/°C, 750mV@25°C, ±2°C, TO-92, 2.7-5.5V

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Manufacturer Part：

TMP36GT9Z

Package：

TO-92 (3-lead, 4.3 mm diameter body)

Brand：

Product Categories：

Integrated Circuits ICs, Sensors

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Description

Product Overview

The TMP36GT9Z from Analog Devices is a low-voltage, precision centigrade temperature sensor in a 3-lead TO-92 package. It provides an analog output voltage linearly proportional to Celsius temperature with a scale factor of 10 mV/°C and a 750 mV offset at 25°C. Rated from -40°C to +125°C with ±2°C typical accuracy, it operates from a single 2.7 V to 5.5 V supply with under 50 µA quiescent current.

Key Specifications

Output Scale Factor	10 mV/°C
Output @ 25°C	750 mV
Accuracy (typical)	±1°C @ 25°C, ±2°C over full range
Linearity	±0.5°C typical
Supply Voltage	2.7 V to 5.5 V
Quiescent Current	<50 µA
Shutdown Current	0.5 µA max
Temperature Range	-40°C to +125°C (operates to +150°C)
Output Impedance	Low (directly drives ADC)
Package	TO-92 (3-lead)

Features

Direct Celsius-calibrated output, no external calibration needed
750 mV offset allows negative temperature reading on single supply
Low supply current minimizes self-heating (<0.1°C in still air)
Shutdown mode reduces current to 0.5 µA
Stable with large capacitive loads
Compatible with LM50 in application circuits

Applications

Environmental temperature monitoring
Battery management thermal protection
HVAC and thermostat control
Industrial process control
Microcontroller temperature sensing

Product Introduction:TMP36GT9Z Product Introduction

The Analog Devices TMP36GT9Z is a low-voltage precision centigrade temperature sensor that provides an analog voltage output linearly proportional to temperature in degrees Celsius. With a 10 mV/°C scale factor and 750 mV output at 25°C, it allows measurement of negative temperatures on a single supply. The device requires no external calibration and achieves ±1°C accuracy at 25°C and ±2°C over the -40°C to +125°C range. The low quiescent current of less than 50 µA minimizes self-heating errors to below 0.1°C in still air. A shutdown function reduces current to below 0.5 µA for battery-powered applications.

Working Principle:TMP36GT9Z Working Principle

The TMP36GT9Z uses a bandgap reference architecture to generate a voltage output proportional to the absolute temperature. The core sensing element consists of multiple transistors operating at different current densities, producing a differential voltage that is proportional to absolute temperature (PTAT). An on-chip amplifier scales and offsets this PTAT voltage to produce the 10 mV/°C output with a 500 mV offset (Vout = 10 mV/°C × T + 500 mV), allowing the output to read 750 mV at 25°C and remain above ground for temperatures down to -40°C. The low output impedance enables direct connection to ADC inputs without buffer amplifiers.

Pin Description:TMP36GT9Z Pin Definition and Functions

Pin	Name	Description
1	VIN	Supply Voltage Input (2.7-5.5 V)
2	VOUT	Analog Voltage Output (10 mV/°C)
3	GND	Ground

Application Scenarios:In which products and applications isTMP36GT9Z used

Environmental Monitoring: Direct ADC interface for room temperature measurement in smart building and weather station applications
Battery Management: Thermal protection in Li-ion battery packs with ±2°C accuracy ensuring safe charging range
HVAC Control: Low-cost thermostat sensing element with linear output simplifying PID control algorithms
Industrial Process: Cold junction compensation for thermocouples and general-purpose temperature monitoring
MCU Sensing: Single-supply operation from MCU VCC with 10 mV/°C output directly readable by 10-bit ADC