ESP32 Forum

I need to get as much information as I can about this ADC and I wasn't able to find ample amount of it from the datasheet and reference manual of the ESP32. Did anyone manage to find the reference number of the ADC itself?

Hi A.H.Z123,
There are no other sources of official information about ESP32's ADC other than:
- ESP32 Datasheet -- https://www.espressif.com/sites/default ... eet_en.pdf
- ESP32 Technical Reference Manual -- https://www.espressif.com/sites/default ... ual_en.pdf
- ESP-IDF Programming Guide for ESP32 -- https://docs.espressif.com/projects/esp ... s/adc.html
- ADC driver code in https://github.com/espressif/esp-idf/tr ... nts/driver
What specific information do you need?

ESP_krzychb wrote: Hi A.H.Z123,
There are no other sources of official information about ESP32's ADC other than:
- ESP32 Datasheet -- https://www.espressif.com/sites/default ... eet_en.pdf
- ESP32 Technical Reference Manual -- https://www.espressif.com/sites/default ... ual_en.pdf
- ESP-IDF Programming Guide for ESP32 -- https://docs.espressif.com/projects/esp ... s/adc.html
- ADC driver code in https://github.com/espressif/esp-idf/tr ... nts/driver
What specific information do you need?

Hello, I would like to know the clock source of the adc(and its frequency) and how the sampling frequency is derived from it. I couldn't find any detailed information on how I should proceed with the calculations. Also, is it possible to select a different clock source?