ADS7816UB datasheet by Texas Instruments

ADS7816UB Frequently Asked Questions (FAQs)

• What is the recommended layout and routing for the ADS7816UB?
  The ADS7816UB requires careful layout and routing to ensure optimal performance. TI recommends using a 4-layer PCB with a solid ground plane, and keeping the analog and digital signals separate. The analog input traces should be short and direct, and the digital output traces should be routed away from the analog inputs.
• How do I handle the digital output data from the ADS7816UB?
  The ADS7816UB outputs 16-bit data in a serial format. The digital output data can be handled using a microcontroller or FPGA. The data can be clocked out of the device using the SCLK pin, and the data is valid on the falling edge of the SCLK. The data format is MSB-first, and the output data is unsigned binary.
• What is the maximum sampling rate of the ADS7816UB?
  The maximum sampling rate of the ADS7816UB is 250 kSPS. However, the actual sampling rate may be limited by the system clock frequency, the conversion time, and the settling time of the analog input signal.
• How do I calibrate the ADS7816UB?
  The ADS7816UB does not require calibration. It has an internal calibration circuit that ensures accurate conversions. However, the device may require an external reference voltage to be connected to the REF pin, and the analog input range should be set using the PGA gain settings.
• What is the power consumption of the ADS7816UB?
  The power consumption of the ADS7816UB depends on the operating mode and the sampling rate. In normal operation, the device consumes around 15 mW at 250 kSPS. In power-down mode, the device consumes less than 1 μW.