Texas Instruments recommends a 4-layer PCB with a solid ground plane, and placing the ADS1286UC close to the analog signal 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 ADS1286UC's performance for their specific application.
The ADS1286UC's performance is affected by temperature, with changes in offset voltage, gain error, and noise floor. TI provides temperature coefficients for these parameters in the datasheet, allowing engineers to compensate for temperature effects in their design.
To ensure EMC, TI recommends using a shielded enclosure, minimizing PCB trace lengths, and using a common-mode filter on the analog input signals. Additionally, the ADS1286UC's digital outputs should be isolated from the analog inputs using digital isolators or optocouplers.
TI recommends powering up the ADS1286UC in the following sequence: AVDD, DVDD, and then the clock signal. This ensures that the device's internal biasing and reference circuits are properly initialized.
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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.
