Texas Instruments recommends a 4-layer PCB with a solid ground plane, and to keep the analog and digital signals separate. The analog input traces should be short and direct, and the digital output traces should be shielded. Additionally, decoupling capacitors should be placed close to the device.
To prevent signal integrity issues, it is recommended to use a low-impedance transmission line, such as a 50-ohm microstrip or stripline, and to terminate the line with a 50-ohm resistor. Additionally, the digital output should be buffered with a high-speed buffer, such as the THS3201, to reduce the load on the ADS8342IBPFBT.
The maximum sampling rate of the ADS8342IBPFBT is 100 kSPS, and it can be achieved by using the internal clock or an external clock source. The power consumption of the device increases with the sampling rate, and it is recommended to use the lowest sampling rate necessary for the application to minimize power consumption.
The ADS8342IBPFBT has an internal calibration circuit that can be used to calibrate the device. The calibration options available include offset calibration, gain calibration, and system calibration. The device can also be calibrated using an external calibration circuit or through software calibration using the SPI interface.
The ADS8342IBPFBT is a high-speed digital device and can be susceptible to electromagnetic interference (EMI) and radio-frequency interference (RFI). To ensure electromagnetic compatibility, it is recommended to use a shielded enclosure, to keep the device away from high-frequency sources, and to use EMI filters or shielding on the input and output signals.
ADS8342IBPFBT datasheet
by Texas Instruments
