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TMP36GT9Z Analog Temperature Sensor — TO-92, -40°C to +125°C, 10mV/°C
The TMP36GT9Z is a precision analog temperature sensor from Analog Devices that outputs a voltage linearly proportional to temperature at 10mV/°C. With a measurement range of -40°C to +125°C, no external calibration required, and a simple 3-pin TO-92 package, it is one of the easiest temperature sensors to use with Arduino and any ADC-equipped microcontroller.
Key Specifications
| Parameter | Value |
|---|---|
| Part Number | TMP36GT9Z |
| Package | TO-92 (through-hole) |
| Supply Voltage | 2.7V – 5.5V |
| Output | Analog voltage (10mV/°C) |
| Temperature Range | -40°C to +125°C |
| Accuracy | ±2°C (typical at 25°C) |
| Output at 25°C | 750mV |
| Quiescent Current | 50μA (typical) |
| No Calibration Required | Yes |
Arduino Reading Formula
float voltage = analogRead(A0) * (5.0 / 1023.0); float tempC = (voltage - 0.5) * 100.0;
- At 25°C: output = 750mV → (0.75 - 0.5) × 100 = 25°C ✔
- At 0°C: output = 500mV
- At -40°C: output = 100mV
Why Choose TMP36?
- ✅ No calibration needed — factory-calibrated, plug-and-read
- ✅ Simple analog output — read with any ADC pin, no I²C/SPI library required
- ✅ 2.7–5.5V supply — compatible with 3.3V and 5V Arduino boards
- ✅ 50μA quiescent current — suitable for battery-powered sensor nodes
- ✅ TO-92 package — breadboard and through-hole PCB compatible
Typical Applications
- Arduino ambient temperature measurement
- Data logger temperature sensing
- Thermostat and temperature controller input
- PCB and enclosure temperature monitoring
- Weather station temperature sensor
- Battery temperature monitoring
Package Contents
- 1 × TMP36GT9Z Analog Temperature Sensor (TO-92)


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