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TMP36 Analog Temperature Sensor is a simple, low-power way to measure ambient temperature with a microcontroller or ADC. It outputs an analog voltage that changes linearly with temperature, making it easy to read using Arduino, Raspberry Pi setups with an external ADC, and other development boards.
This solid-state sensor has no moving parts and does not rely on mercury, bimetallic strips, or thermistors. The internal circuitry handles the temperature sensing and amplification, so you get a ready-to-use analog signal that is precise, consistent, and straightforward to work with in data logging, monitoring, and control projects.
It can be powered from 2.7V to 5.5V. With the flat face/text facing you, connect pin 1 to power, pin 3 to ground, and pin 2 to your analog input. For Raspberry Pi projects, note that the Pi does not read analog signals directly, so you will need an ADC such as an MCP3008 between the sensor and the Pi.
Technical details for the TMP36 analog temperature sensor.
| Model | TMP36 |
|---|---|
| Supply Voltage | 2.7V to 5.5V |
| Type | Analog ambient temperature sensor |
| Output | Analog voltage proportional to temperature |
| Output at -50°C | 0V |
| Output at 125°C | 1.75V |
| Temperature Formula | Temp °C = 100 × (reading in V) - 50 |
| Length | 3.5mm / 0.14" |
| Width | 4.6mm / 0.18" |
| Height | 19mm / 0.74" |
| Weight | 0.2g |
Pin configuration for the TMP36 when the flat face/text is facing you.
| Pin | Name | Function |
|---|---|---|
| 1 | V+ | Connect to 2.7V to 5.5V supply |
| 2 | Vout | Analog temperature output for ADC or analog input |
| 3 | GND | Ground connection |
Read the sensor voltage on pin 2 and convert it using Temp °C = 100 × Vout - 50, where Vout is measured in volts. For example, 0.75V corresponds to 25°C.
Important: if you are using a Raspberry Pi, add an external ADC because the Pi does not have native analog input pins.
The TMP36 is an analog temperature sensor for measuring ambient temperature. It outputs a voltage that is directly proportional to temperature, making it suitable for microcontroller and data-logging projects.
Power pin 1 with 2.7V to 5.5V, connect pin 3 to ground, and use pin 2 as the analog output. The output voltage is proportional to temperature and is independent of the supply voltage within this range.
With the flat/text side facing you, connect the left pin to power, the middle pin to an analog input, and the right pin to ground. It is designed to be read directly by an ADC or analog input pin.
Yes, but a Raspberry Pi cannot read analog signals directly. The referenced guide uses the TMP36 with an MCP3008 ADC so the Pi can read the sensor output.
From the supplied product brief, temperature in °C can be calculated as 100 × Vout - 50, where Vout is in volts. The brief also notes the output is 0V at -50°C and 1.75V at 125°C.
The listed dimensions are 3.5mm length, 4.6mm width, and 19mm height. The sensor weight is 0.2g.
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