Texas Instruments recommends a 4-layer PCB with a solid ground plane, and placing the ADS1213E/1K close to the analog signal sources. Additionally, decoupling capacitors should be placed as close as possible to the device's power pins, and the analog and digital grounds should be separated and connected at a single point.
The high impedance of the ADS1213E/1K's analog inputs requires careful consideration of input filtering to prevent noise and distortion. TI recommends using a low-pass filter with a low impedance output driver, and ensuring that the filter's output impedance is matched to the ADS1213E/1K's input impedance.
Clock jitter can affect the ADS1213E/1K's conversion accuracy and noise performance. To minimize clock jitter, TI recommends using a high-quality clock source, such as a crystal oscillator, and ensuring that the clock signal is properly decoupled and filtered.
The ADS1213E/1K requires calibration to ensure accurate conversions. TI recommends following the calibration procedure outlined in the datasheet, and ensuring that the calibration data is stored in non-volatile memory. Calibration errors can result in inaccurate conversions, so it is essential to verify the calibration data and perform regular calibration checks.
The ADS1213E/1K is sensitive to thermal effects, which can affect its accuracy and noise performance. TI recommends ensuring good thermal conductivity between the device and the PCB, using thermal vias and thermal pads, and minimizing power dissipation in the surrounding components.
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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.
