ADS7864Y/250 datasheet by Texas Instruments

ADS7864Y/250 Frequently Asked Questions (FAQs)

• What is the recommended layout and routing for the ADS7864Y/250 to minimize noise and ensure accurate conversions?
  Texas Instruments recommends a 4-layer PCB with a solid ground plane, and to keep analog and digital traces separate. Also, use a low-ESR capacitor for the AVDD pin and a 0.1uF capacitor for the REF pin.
• How do I optimize the ADC's performance for my specific application?
  Optimize the ADC's performance by selecting the correct clock frequency, setting the correct gain and offset, and using the correct input range. Also, consider using the built-in calibration feature to improve accuracy.
• What is the maximum sampling rate I can achieve with the ADS7864Y/250?
  The maximum sampling rate of the ADS7864Y/250 is 250 kSPS. However, this rate can be affected by the clock frequency, input range, and gain settings.
• How do I handle the digital output data from the ADS7864Y/250?
  The ADS7864Y/250 outputs 16-bit data in a serial format. You can use a microcontroller or FPGA to receive and process the data. Make sure to synchronize the data transfer with the ADC's conversion rate.
• What is the power consumption of the ADS7864Y/250, and how can I reduce it?
  The ADS7864Y/250 has a typical power consumption of 15 mW at 250 kSPS. To reduce power consumption, consider using the power-down mode, reducing the clock frequency, or using a lower supply voltage.