Texas Instruments recommends a 4-layer PCB with a solid ground plane, and placing the ADS7811U close to the analog signal sources to minimize noise. Additionally, decoupling capacitors should be placed as close as possible to the device's power pins.
The ADS7811U outputs data in a 16-bit, two's complement format. The digital output data should be handled by a microcontroller or FPGA that can process the data and perform any necessary scaling or formatting.
The maximum sampling rate of the ADS7811U is 100 kSPS (kilosamples per second). However, the actual sampling rate may be limited by the system's clock frequency and the device's conversion time.
The ADS7811U does not require calibration. It has an internal voltage reference and performs self-calibration during power-up. However, the device's accuracy may be affected by external factors such as temperature and supply voltage, so it's recommended to perform system-level calibration and compensation if necessary.
The power consumption of the ADS7811U depends on the operating frequency and supply voltage. Typically, it consumes around 15 mW at 2.7 V and 100 kSPS. However, the actual power consumption may vary depending on the system's configuration and operating conditions.
ADS7811U datasheet
by Texas Instruments
Findchips
