Forum Post: RE: ADC128S102: How much speed can be achieved practically using ADC128S102 and how to set its clock frequency

Hi Priyanka, Welcome to our e2e Forum! For Q1) please review section 7.4 of the ADC128S102 datasheet, paying particular attention to the second paragraph in that section. For Q2, you can still maintain a 1 MSPS throughput, but that would be 125 kSPS/CH. For Q3, see Figure 1 - /CS has to toggle initially, but it can be kept low with a continuous clock, this would be difficult to achieve with a standard SPI type interface. For Q4, change your SCLK speed - SCLK drives the conversion rate so 8 MHz would be 500 kSPS (single channel - 62.5 kSPS/CH with 8 channels).