Texas Instruments recommends a 4-layer PCB with a solid ground plane, and to keep analog and digital signals separate. Also, use short and direct traces for the analog inputs, and avoid crossing digital signals over the analog inputs.
Optimization depends on the application. For example, for low-noise applications, use the lowest possible gain and the highest possible sampling rate. For high-speed applications, use the highest possible sampling rate and the lowest possible gain. Consult the datasheet and application notes for more information.
Power up the device in the following sequence: AVDD, DVDD, and then the clock signal. This ensures that the internal voltage regulators are powered up correctly and the device is properly initialized.
The internal voltage regulators require decoupling capacitors to ensure stable operation. Use 1-10uF ceramic capacitors for AVDD and DVDD, and 100nF-1uF capacitors for the analog and digital supplies. Place the capacitors close to the device pins.
Use a high-quality, low-jitter clock source, such as a crystal oscillator or a high-frequency clock generator. The recommended clock frequency is between 2-40MHz, depending on the application and sampling rate requirements.
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ADS131M08IRSNR Overview
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
