The recommended layout and routing for the ADS7863ADBQR involves keeping the analog and digital grounds separate, using a solid ground plane, and minimizing the length of the analog input traces. It's also recommended to use a 4-layer PCB with a dedicated analog power plane and a dedicated digital power plane.
To optimize the performance of the ADS7863ADBQR in noisy environments, use a low-pass filter at the analog input, use a shielded cable for the analog input, and consider using a common-mode filter or a differential amplifier to reduce noise. Additionally, ensure that the digital and analog grounds are separated and that the power supply is well-regulated.
The maximum sampling rate of the ADS7863ADBQR is 250 kSPS (kilosamples per second) for a single channel, and 125 kSPS for multiple channels.
The ADS7863ADBQR does not require calibration, as it has an internal calibration circuit that performs a self-calibration sequence during power-up. However, if desired, an external calibration can be performed by applying a known input voltage and adjusting the offset and gain registers accordingly.
The power consumption of the ADS7863ADBQR is typically 15 mW at 3.3 V and 250 kSPS, and 30 mW at 5 V and 250 kSPS.
ADS7863ADBQR datasheet
by Texas Instruments
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