Does the ESP32's ADC have a reference number/Datasheet of its own?

[A.H.Z123]

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?

[ESP_krzychb]

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?

[A.H.Z123]

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?