ADS7844EB datasheet by Texas Instruments

ADS7844EB Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the ADS7844EB?
  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 ADC's performance for my specific application?
  To optimize the ADC's performance, ensure proper PCB layout, use a low-noise power supply, and minimize digital noise coupling. Additionally, adjust the gain and offset settings to match your specific application's requirements.
• What is the maximum sampling rate I can achieve with the ADS7844EB?
  The maximum sampling rate of the ADS7844EB is 125 kSPS. However, this rate may vary depending on the specific application and system constraints.
• How do I handle the ADS7844EB's digital output data?
  The ADS7844EB outputs 12-bit digital data in a serial format. You can interface the device with a microcontroller or FPGA to process the data. Ensure proper synchronization and data formatting to avoid data corruption.
• What is the purpose of the CAL pin, and how do I use it?
  The CAL pin is used for calibration. Connect the CAL pin to a 1.5 V reference voltage to enable internal calibration. This ensures accurate conversions and minimizes offset errors.