ADS8320E/2K5 datasheet by Texas Instruments

ADS8320E/2K5 Frequently Asked Questions (FAQs)

• What is the recommended power-on sequence for the ADS8320E/2K5?
  The recommended power-on sequence is to apply VCC first, followed by AVCC, and then the analog input signal. This sequence helps prevent latch-up and ensures proper device operation.
• How do I optimize the layout for the ADS8320E/2K5 to minimize noise and ensure accurate conversions?
  To minimize noise and ensure accurate conversions, keep the analog input traces short and away from digital signals. Use a solid ground plane, and decouple the power supplies with 0.1uF and 10uF capacitors. Also, consider using a separate analog ground plane and connecting it to the digital ground plane at a single point.
• What is the maximum sampling rate I can achieve with the ADS8320E/2K5?
  The maximum sampling rate of the ADS8320E/2K5 is 100kSPS. However, the actual sampling rate may be limited by the system's clock frequency, analog input bandwidth, and other factors. Consult the datasheet and application notes for more information.
• How do I handle the output data from the ADS8320E/2K5? Is it in binary or two's complement format?
  The ADS8320E/2K5 outputs data in binary format. The most significant bit (MSB) is the sign bit, and the remaining bits represent the magnitude of the conversion result. You can convert the binary output to two's complement format if required by your system.
• What is the purpose of the CAL pin on the ADS8320E/2K5, and how do I use it?
  The CAL pin is used for calibration and self-test purposes. When the CAL pin is high, the device enters calibration mode, and the output data is replaced with a calibration code. You can use this feature to verify the device's operation and perform system-level calibration.