TMP36

This project was created to help enigneers, technicians, and hobbyist quicky get the TMP36 Low Voltage Temperature Sensor working in their own projects.

Basic circuit used to gather characteristic data

Typical MCP9701A versus TMP36 noise

Conclusions after testing this part

I have tested several TMP36GT9Z, TMP36GZ, TMP36G, and TMP37FT9Z devices from different vendors.

Conclusion:

Throw all of these away, and never buy a TMP35/TMP36/TMP37 again. This is the worst designed IC circuit I think I have ever seen. The ouptut jumps all over the place and it is extremely sensitive to the slightest electromagnetic radiation. Unpredictable. I was shocked at how bad this IC is. You cannot design a reliable circuit around this part.

Recommendation after testing this part

Recommendation:

Buy the MCP9701A-E/TO instead and never look back. The MCP9701A-E/TO behaves exactly the way you would expect.

See information on the MCP9701A-E/TO here: https://github.com/Joe0x7F/MCP9701A

The information provided includes characteristic equations that make it relatively easy to design your circuit around the MCP9701A.

Another good analog temperature sensor:

Also recommended: https://github.com/Joe0x7F/LMT87