The ADS1262IPWR requires careful PCB layout and placement to minimize noise and ensure optimal performance. TI recommends following the layout guidelines in the datasheet, including keeping analog and digital traces separate, using a solid ground plane, and placing the device close to the analog input sources.
To optimize the ADC's performance, consider the following: choose the correct gain setting, adjust the sampling rate, and select the appropriate filter settings. Additionally, ensure proper input signal conditioning, including filtering and amplification, to minimize noise and distortion.
The recommended power-up sequence is to first apply the analog power supply (AVDD), followed by the digital power supply (DVDD), and then the clock signal. This ensures proper device initialization and prevents potential latch-up conditions.
The ADS1262IPWR has an internal oscillator that can be used as the clock source. However, for more accurate and stable operation, it is recommended to use an external clock source. Ensure the clock signal meets the device's frequency and amplitude requirements, and consider using a clock buffer or oscillator with a low jitter and noise floor.
To minimize EMI and RFI, use a solid ground plane, keep analog and digital traces separate, and use shielding or filtering on the input signals. Additionally, consider using a metal shield or enclosure for the device, and ensure proper PCB layout and component placement to reduce radiation and susceptibility.
ADS1262IPWR datasheet
by Texas Instruments
