what type of resistor in tmsc18rf that is less sensitive to temperature?

[anhnha]

Hi,

I am choosing a resistor for current reference using tsmc18rf. I have a stable voltage and now I need to generate a current independent to temperature.
Could you tell me what type of resistor in tmsc18rf that is less sensitive to temperature?

 

[Dominik Przyborowski]

You need to check in process documentation. The less sensitive are polysilicon resistors but it depends to its doping. The most probably your process provide a few types of poly resistors with differ temperature coefficients.

 

[anhnha]

Thank you! I will check each resistor in the library.

 

[erikl]

If you find resistors with pos. and those with neg. temperature coefficient in your library, you could appropriately combine them to achieve a low TC, s. this thread.