ADS7834E/2K5 datasheet by Texas Instruments

ADS7834E/2K5 Frequently Asked Questions (FAQs)

• What is the recommended power-on sequence for the ADS7834E/2K5?
  The recommended power-on sequence is to apply VCC first, followed by VREF, and then the clock signal. This ensures proper device operation and prevents latch-up.
• 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/2K5?
  The maximum sampling rate is 250 kSPS (kilosamples per second) for the ADS7834E/2K5. However, this rate may vary depending on the specific application and system design.
• Can I use an external reference voltage with the ADS7834E/2K5?
  Yes, you can use an external reference voltage with the ADS7834E/2K5. The device has a dedicated REF pin that allows you to connect an external reference voltage source. 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/2K5 outputs data in a 12-bit, right-justified format. The device also provides a DOUT/Busy pin that indicates when the conversion is complete and the data is ready to be read.