I want to do a wireless sample in our project. I just want to know which chip can achieve this function.
If you want to use EasyDMA with ADC, you will have to go with the nRF52832 or the new nRF52840 (currently only available in engineering samples). Both these chips have a SAADC peripheral supporting EasyDMA and a sampling rate of up to 200 kHz. Are you planning to transfer all the ADC data over ESB? ESB is not supported by nRF52840 yet.