ADS807E datasheet by Texas Instruments

ADS807E Frequently Asked Questions (FAQs)

• What is the recommended power-on sequence for the ADS807E?
  The recommended power-on sequence is to apply VCC first, followed by AVCC, and then the analog input signal. This ensures proper device operation and prevents latch-up.
• How do I optimize the layout for the ADS807E to minimize noise and interference?
  To minimize noise and interference, keep the analog and digital grounds separate, use a solid ground plane, and keep the analog input traces away from digital traces. Also, use a low-pass filter on the analog input to reduce high-frequency noise.
• What is the maximum sampling rate I can achieve with the ADS807E?
  The maximum sampling rate of the ADS807E is 100 kSPS. However, the actual sampling rate may be limited by the system's clock frequency, analog input bandwidth, and digital output data rate.
• How do I handle the output data format of the ADS807E?
  The ADS807E outputs 12-bit data in a serial format. The output data is in two's complement format, with the most significant bit (MSB) first. The data is clocked out on the falling edge of the SCLK signal.
• What is the purpose of the CAL pin on the ADS807E?
  The CAL pin is used for calibration purposes. When the CAL pin is pulled low, the ADS807E enters calibration mode, which allows the device to self-calibrate and improve its accuracy.