It is recommended to follow a star-grounding scheme, keep analog and digital grounds separate, and use a solid ground plane to minimize noise. Additionally, keep the input and output traces short and away from each other to reduce crosstalk.
Ensure the device operates within the recommended voltage range (2.7V to 5.5V), temperature range (-40°C to 125°C), and power dissipation (PD) limits. Also, follow the recommended PCB layout and thermal management guidelines to prevent overheating.
Using an external reference voltage can provide better accuracy and stability, but it may also introduce additional noise and affect the overall performance of the ADC. Ensure the external reference voltage is stable, low-noise, and within the recommended range (1.2V to VCC).
Check the input signal integrity, ensure proper power supply decoupling, and verify the clock signal frequency and duty cycle. Also, review the firmware and software implementation to ensure correct configuration and data handling. If issues persist, consult the datasheet and application notes or contact TI support.
Follow proper PCB layout and shielding techniques, use a solid ground plane, and ensure proper decoupling of power supplies. Additionally, use EMI filters or common-mode chokes on input and output lines, and consider using a metal shield or enclosure to reduce radiated emissions.
TLV2548QDW datasheet
by Texas Instruments
