Texas Instruments recommends a 4-layer PCB with a solid ground plane, and placing the ADC close to the analog signal sources. Decoupling capacitors should be placed as close as possible to the power pins, and the analog and digital grounds should be separated.
To optimize performance in noisy environments, use a low-pass filter on the analog input, keep the analog signal traces short and away from digital traces, and use a shielded cable for the analog input. Additionally, consider using a common-mode filter or a differential amplifier to reject common-mode noise.
The maximum sampling rate of the ADS7229IPWR is 1 MSPS, but this can be limited by the system's clock frequency, the analog input bandwidth, and the digital interface speed. The actual sampling rate may be lower depending on the specific application and system design.
The ADS7229IPWR outputs 16-bit data in a serial format. The digital output data can be handled using a microcontroller or an FPGA, and the data can be processed and stored using a variety of methods, including SPI or I2C interfaces, DMA transfers, or software-based data processing.
The power consumption of the ADS7229IPWR is typically around 15 mW at 1 MSPS. To reduce power consumption, consider using a lower clock frequency, reducing the sampling rate, or using the device's power-down mode when not in use. Additionally, optimizing the system's power supply and using low-power components can also help reduce overall power consumption.
ADS7229IPWR datasheet
by Texas Instruments
