For optimal performance, it's recommended to follow Texas Instruments' PCB layout guidelines, which include using a solid ground plane, minimizing signal trace lengths, and keeping analog and digital signals separate. Additionally, using a 4-layer PCB with a dedicated power plane and a dedicated ground plane can help reduce noise and improve performance.
To optimize clocking and synchronization, ensure that the ADC's clock input is driven by a low-jitter clock source, and consider using a clock buffer or jitter cleaner to reduce clock noise. Additionally, synchronize the ADC's conversion with the system clock to minimize sampling errors and ensure data coherency.
To minimize distortion and noise, use a low-impedance, low-noise analog signal source, and consider using an analog front-end (AFE) or an anti-aliasing filter to condition the input signal. Additionally, ensure that the input signal is within the ADC's specified input range and that the input impedance is matched to the ADC's input impedance.
To calibrate the ADC, follow Texas Instruments' recommended calibration procedure, which typically involves applying a known input signal and adjusting the ADC's offset and gain registers to achieve optimal performance and accuracy. Additionally, consider using an external calibration signal source and a calibration algorithm to optimize the ADC's performance.
To ensure reliable operation, ensure that the ADS42JB69IRGCR is operated within its specified temperature range (-40°C to 105°C). Use thermal vias and thermal pads to dissipate heat, and consider using a heat sink or thermal interface material to improve heat transfer. Additionally, ensure that the PCB is designed to minimize thermal gradients and hotspots.
ADS42JB69IRGCR datasheet
by Texas Instruments
