ADC081S021CIMF/NOPB datasheet by Texas Instruments

ADC081S021CIMF/NOPB Frequently Asked Questions (FAQs)

• What is the recommended input impedance for the ADC081S021?
  The recommended input impedance for the ADC081S021 is between 1 kΩ and 10 kΩ to ensure proper operation and minimize signal attenuation.
• How do I handle the ADC081S021's analog input voltage range?
  The ADC081S021 has an analog input voltage range of 0 to VREF (typically 2.5V). Ensure that the input signal is within this range to avoid saturation or clipping.
• What is the purpose of the VREF pin on the ADC081S021?
  The VREF pin sets the reference voltage for the ADC. Connect a stable voltage source (typically 2.5V) to this pin to establish the full-scale range of the ADC.
• How do I interface the ADC081S021 with a microcontroller?
  The ADC081S021 communicates through a standard SPI interface. Connect the ADC's SCLK, SDI, and SDO pins to the microcontroller's SPI pins, and ensure proper clock synchronization and data transfer protocols.
• What is the power consumption of the ADC081S021?
  The ADC081S021 has a typical power consumption of 1.5 mA at 1.8V supply voltage. This can vary depending on the sampling rate and operating conditions.