Texas Instruments recommends a 4-layer PCB with a solid ground plane, and placing the ADS1213E close to the analog input sources to minimize noise. Additionally, decoupling capacitors should be placed as close as possible to the device's power pins.
Optimizing the ADC's performance requires careful consideration of the input signal, clock frequency, and gain settings. TI provides an ADC Performance Calculator tool to help engineers optimize the ADS1213E's performance for their specific application.
The ADS1213E's accuracy and performance can be affected by temperature. TI provides temperature coefficients for the device's offset and gain errors, which can be used to correct for temperature-related errors. Additionally, the device's internal temperature sensor can be used to monitor temperature and adjust the ADC's performance accordingly.
To minimize EMI and RFI interference, TI recommends using a shielded enclosure, keeping the analog input signals away from digital signals, and using a common-mode filter or ferrite bead on the analog input lines. Additionally, the ADS1213E's internal digital filter can be used to reject high-frequency noise.
TI recommends powering up the ADS1213E in the following sequence: VDD, AVDD, and then DVDD. This sequence helps to ensure that the device's internal voltage regulators are properly initialized and that the ADC is powered up correctly.
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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.
