ADS7843E/2K5 datasheet by Texas Instruments

ADS7843E/2K5 Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the ADS7843E/2K5?
  The recommended power-up sequence is to apply VCC first, followed by VREF, and then the analog input signal. This ensures proper operation and prevents damage to the device.
• How do I optimize the layout of the ADS7843E/2K5 for best performance?
  To optimize the layout, keep the analog and digital grounds separate, use a solid ground plane, and minimize the distance between the ADS7843E/2K5 and the analog input signal source. Also, use a low-ESR capacitor for the VREF pin.
• What is the maximum sampling rate of the ADS7843E/2K5?
  The maximum sampling rate of the ADS7843E/2K5 is 125 kHz, but it can be adjusted by changing the clock frequency and the conversion mode.
• How do I handle the offset and gain errors of the ADS7843E/2K5?
  The ADS7843E/2K5 has built-in offset and gain error correction capabilities. Use the internal offset and gain calibration registers to adjust the output values and compensate for errors.
• Can I use the ADS7843E/2K5 with a single-ended analog input signal?
  Yes, the ADS7843E/2K5 can be used with a single-ended analog input signal, but it's recommended to use a differential input signal for better noise rejection and common-mode rejection ratio (CMRR).