ADS7843E/2K5G4 datasheet by Texas Instruments

ADS7843E/2K5G4 Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the ADS7843E/2K5G4?
  The recommended power-up sequence is to apply VCC first, followed by VREF, and then the clock signal. This ensures proper initialization of the device.
• How do I handle the busy signal (BUSY) during conversion?
  The BUSY signal goes high during conversion and remains high until the conversion is complete. The host should wait for BUSY to go low before accessing the conversion result.
• What is the maximum frequency of the clock signal (CLK) that can be used with the ADS7843E/2K5G4?
  The maximum frequency of the clock signal is 3.25 MHz. Exceeding this frequency may result in incorrect conversion results or device malfunction.
• How do I calibrate the ADS7843E/2K5G4 for optimal performance?
  Calibration involves adjusting the internal offset and gain of the device. TI provides a calibration procedure in the datasheet, which involves applying a known input voltage and adjusting the offset and gain registers accordingly.
• What is the effect of temperature on the ADS7843E/2K5G4's performance?
  The ADS7843E/2K5G4's performance is affected by temperature, with changes in offset, gain, and noise floor. TI provides temperature coefficients in the datasheet to help engineers compensate for these effects.