Hi, Here's the sch of ADC pins. The reference is from external 3.3V, instead of VDDA. In the list, all of the conversions are less than +/-3 LSB. With 25.5MHz, here's the result, overlap=1: ACQPS=8, B3=22, B7=13, B4=78. ACQPS=10, B3=13, B7=8, B4=79. ACQPS=13, B3=3, B7=0, B4=74. Br, Jordan
↧