ADS7834E/250 datasheet by Texas Instruments

ADS7834E/250 Frequently Asked Questions (FAQs)

• What is the recommended power-on sequence for the ADS7834E/250?
  The recommended power-on 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 device's power-down mode?
  To enter power-down mode, set the PD pin low. In this mode, the device consumes minimal power, but the internal reference and oscillator are disabled. To exit power-down mode, set the PD pin high.
• What is the maximum sampling rate I can achieve with the ADS7834E/250?
  The maximum sampling rate is 250 kSPS, but this may vary depending on the clock frequency, voltage supply, and other system-level factors. Consult the datasheet for more information on sampling rate vs. clock frequency.
• Can I use an external reference voltage instead of the internal reference?
  Yes, you can use an external reference voltage by connecting it to the VREF pin. However, ensure that the external reference voltage is within the recommended range of 2.5 V to 5.5 V.
• How do I handle the device's output data format?
  The ADS7834E/250 outputs data in a 12-bit, right-justified format. You can configure the device to output data in either binary or twos-complement format using the OFS pin.