Texas Instruments recommends a 4-layer PCB with a solid ground plane, and to keep the analog and digital signals separate. The input and output traces should be routed away from each other and from the digital signals. Additionally, decoupling capacitors should be placed close to the device.
To optimize performance, ensure that each ADC has its own separate analog power supply and ground plane. Use a common mode filter or a ferrite bead to reduce noise coupling between the ADCs. Also, consider using a separate analog ground plane for each ADC.
A low-jitter clock source, such as a crystal oscillator or a high-quality clock generator, is recommended. To minimize clock jitter, use a clock signal with a frequency of at least 10 times the sampling frequency, and ensure the clock signal is clean and free of noise.
The digital output data from the ADS8411IBPFBT should be processed and filtered according to the specific application requirements. A digital filter, such as a low-pass filter or a decimation filter, may be necessary to remove noise and aliasing. Additionally, consider using a FIFO or a buffer to handle the data and ensure data integrity.
The ADS8411IBPFBT has a maximum junction temperature of 150°C. Ensure good thermal conductivity between the device and the PCB, and consider using a heat sink or a thermal pad to dissipate heat. Also, ensure that the device is operated within the recommended temperature range of -40°C to 125°C.
ADS8411IBPFBT datasheet
by Texas Instruments
