Texas Instruments recommends a 4-layer PCB with a solid ground plane, and to keep analog and digital traces separate. Also, use a low-ESR capacitor for the AVDD pin and a 0.1uF capacitor for the REF pin.
Optimize the ADC's performance by selecting the correct clock frequency, setting the correct gain and offset, and using the correct input range. Also, consider using the ADC's built-in calibration feature to improve accuracy.
The maximum sampling rate of the ADS7867IDBVT is 250 kSPS. However, this rate may vary depending on the specific application and the clock frequency used.
The ADS7867IDBVT has a latency of 2.5 clock cycles. Ensure that your system can handle the data transfer by using a FIFO or a buffer to store the converted data, and consider using a DMA or interrupt-driven data transfer.
The recommended power-up sequence is to power up the AVDD pin first, followed by the DVDD pin, and then the digital interface pins. This ensures that the ADC is properly initialized and configured.
ADS7867IDBVT datasheet
by Texas Instruments
