Texas Instruments provides a layout and routing guide for the ADS574JU in the 'ADS574JU Layout and Routing Guidelines' application note (SLAA744). It recommends a 4-layer PCB with a solid ground plane, and provides guidance on component placement, routing, and decoupling.
To optimize the performance of the ADS574JU in a noisy environment, use a low-pass filter on the analog input, ensure a clean power supply, and use a ground plane to reduce noise coupling. Additionally, consider using a shielded enclosure and keeping the analog and digital circuits separate.
The maximum sampling rate of the ADS574JU is 250 kSPS, but this can be limited by the analog input bandwidth, the clock frequency, and the system noise. In practice, a sampling rate of 100 kSPS to 200 kSPS is more typical.
The ADS574JU has an internal calibration circuit that can be used to calibrate the device. The calibration process involves writing specific values to the device's registers to adjust the offset and gain. Texas Instruments provides a calibration procedure in the 'ADS574JU Calibration Procedure' application note (SLAA745).
The power consumption of the ADS574JU is typically around 35 mW at 250 kSPS. To reduce power consumption, consider using a lower clock frequency, reducing the analog input bandwidth, or using the device's power-down mode when not in use.
ADS574JU datasheet
by Texas Instruments
