TMP36 Pinout
TMP36 Temperature Sensor · Analog temperature sensor, 10 mV/°C with a 500 mV offset so it can read negative temperatures.
TO-92 flat (labelled) face toward you, pins down: left to right +Vs, Vout, GND. 10 mV/°C with a 500 mV offset at 0°C, so it can read below 0°C on a single supply.
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | +Vs · VCC | Power | Supply + (2.7–5.5V) |
| 2 | Vout | Output | Analog output (500 mV + 10 mV/°C) |
| 3 | GND | GND | Ground |
How to read the TMP36 pinout
- 01
Find pin 1
One end of the chip has a half-circle notch or a dot; with the notch facing up, the top-left pin is pin 1.
- 02
Count counter-clockwise
Count counter-clockwise from pin 1: go down the left side first, then up the right side from the bottom.
- 03
Check the table below
Look up each pin's function by number in the table below; power/ground are color-coded, and alternate-function signals are in parentheses.
Frequently asked questions
How is the TMP36 different from the LM35?
The TMP36 adds a 500 mV offset (Vout = 0.5V + 10mV/°C), so it can output a positive voltage for sub-zero temperatures on a single supply — the plain LM35 hookup cannot read below 0°C.
How do I convert TMP36 output to °C?
Temperature (°C) = (Vout − 0.5V) / 10 mV. E.g. 0.75V → 25°C. Watch the 500 mV offset when scaling your ADC reading.
Pinout data comes from Analog Devices TMP36 datasheet (standard TO-92 numbering). Refer to the actual device datasheet as authoritative for the pinout.