A good layout and routing practice is to keep the analog and digital grounds separate, use a solid ground plane, and keep the analog and digital signal traces separate. Additionally, use a low-ESR capacitor for the AVDD pin and a 0.1uF capacitor for the DVDD pin. Refer to the TI application note 'PCB Layout Guidelines for Switching Regulators' for more information.
To optimize performance in a noisy environment, use a low-pass filter at the input, use a shielded cable for the analog input, and keep the analog circuitry away from the digital circuitry. Additionally, use a common-mode filter or a differential amplifier to reject common-mode noise. Refer to the TI application note 'Noise Reduction Techniques for Analog-to-Digital Converters' for more information.
The recommended power-up sequence is to power up the AVDD pin first, followed by the DVDD pin. This ensures that the analog circuitry is powered up before the digital circuitry. Additionally, ensure that the AVDD pin is powered up before the analog input signal is applied.
If the ADS8361IRHBT is not converting data correctly, check the power supply voltages, ensure that the clock signal is within the specified frequency range, and verify that the analog input signal is within the specified range. Also, check the digital output data format and ensure that it matches the expected format. Refer to the TI application note 'Troubleshooting Analog-to-Digital Converters' for more information.
The recommended method is to use the CLKIN pin to synchronize the ADS8361IRHBT with an external clock source. Ensure that the external clock frequency is within the specified range and that the clock signal is clean and stable. Additionally, use a clock buffer or a clock conditioner to ensure a clean clock signal.
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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.
