ADS7871IDBG4 datasheet by Texas Instruments

ADS7871IDBG4 Frequently Asked Questions (FAQs)

• What is the recommended layout and routing for the ADS7871IDBG4?
  Texas Instruments provides a recommended layout and routing guide in the ADS7871IDBG4 Evaluation Module User's Guide (SLAU445). It's essential to follow this guide to ensure optimal performance and minimize noise coupling.
• How do I calibrate the ADS7871IDBG4?
  The ADS7871IDBG4 does not require calibration. It has an internal calibration circuit that ensures accurate conversions. However, if you need to perform system-level calibration, you can use the device's offset and gain adjustment registers to trim the output.
• What is the maximum sampling rate I can achieve with the ADS7871IDBG4?
  The ADS7871IDBG4 can operate at a maximum sampling rate of 1.5 MSPS. However, the actual achievable sampling rate may be limited by the system's clock frequency, analog input bandwidth, and digital interface speed.
• Can I use the ADS7871IDBG4 with an external reference voltage?
  Yes, the ADS7871IDBG4 can be used with an external reference voltage. The device has a dedicated REF pin that can be connected to an external reference voltage source. This allows you to use a more accurate or stable reference voltage than the internal reference.
• How do I handle the digital output data from the ADS7871IDBG4?
  The ADS7871IDBG4 outputs 12-bit digital data in a serial format. You can use a microcontroller or FPGA to receive and process the data. Make sure to follow the device's digital interface timing and protocol to ensure correct data reception.