Texas Instruments recommends a 4-layer PCB with a solid ground plane, and placing the ADS1203IRGTR close to the analog signal sources to minimize noise. Additionally, it's recommended to use a separate analog ground plane and to keep digital signals away from the analog signals.
To optimize performance in a noisy environment, use a low-pass filter on the analog input, use a shielded cable for the analog input, and consider using a common-mode filter. Additionally, ensure that the power supply is clean and well-regulated, and consider using a separate analog power supply.
The maximum sampling rate of the ADS1203IRGTR is 2000 samples per second (SPS). However, the actual sampling rate may be limited by the system's clock frequency, the analog input bandwidth, and the digital interface.
The ADS1203IRGTR has an internal calibration circuit that can be used to calibrate the device. The calibration process involves applying a known input voltage and then reading the output code. The gain and offset errors can then be calculated and corrected for. Texas Instruments provides a calibration procedure in the datasheet and in application notes.
The ADS1203IRGTR is specified to operate over a temperature range of -40°C to 125°C. Over this range, the device's performance may vary, with changes in gain, offset, and noise. Texas Instruments provides temperature coefficients for the device's parameters in the datasheet, which can be used to correct for temperature-related errors.
ADS1203IRGTR datasheet
by Texas Instruments
