ADS7884SDBVT datasheet by Texas Instruments

ADS7884SDBVT Frequently Asked Questions (FAQs)

• What is the recommended layout and routing for the ADS7884SDBVT?
  The recommended layout and routing for the ADS7884SDBVT involves keeping the analog and digital grounds separate, using a solid ground plane, and minimizing the length of the analog input traces. Additionally, it's recommended to use a 4-layer PCB with a dedicated analog power plane and a dedicated digital power plane.
• How do I optimize the performance of the ADS7884SDBVT in noisy environments?
  To optimize the performance of the ADS7884SDBVT in noisy environments, use a low-pass filter at the input, use a shielded cable for the analog input, and consider using a common-mode filter. Additionally, ensure that the analog and digital grounds are separated and that the digital noise is not coupled into the analog circuitry.
• What is the maximum sampling rate of the ADS7884SDBVT?
  The maximum sampling rate of the ADS7884SDBVT is 1 MSPS (million samples per second). However, the actual sampling rate may be limited by the system clock frequency, the conversion time, and the settling time of the analog input signal.
• How do I calibrate the ADS7884SDBVT?
  The ADS7884SDBVT does not require calibration. It has an internal calibration circuit that performs a self-calibration sequence during power-up. However, if the device is used in a system that requires calibration, an external calibration circuit can be implemented using the CAL pin.
• What is the power consumption of the ADS7884SDBVT?
  The power consumption of the ADS7884SDBVT depends on the operating mode and the clock frequency. In normal operation, the device consumes around 15 mW at 1 MSPS. In power-down mode, the device consumes around 10 μW.