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Part selection to read 50 analog channels

Mark Steve
Prodigy 40 points

Hi, I have a requirement to read 50 NTC thermistors for temperature sensing through ADC.

I have selected a NTC thermistor. But, I am an unable to find out an ADC (inbuilt to the microcontroller) or external ADC to read 50 analog channels.

Is there any part or solution (in built ADC or external ADC) to read 50 analog channels? And also kindly specify the resolution required for the ADC (10 bit,12 bit or 16 bit) for NTC thermistor. Kindly suggest the part number or any other solution for microcontroller and ADC

Thanks,

Mark Steve