DAC8812ICPWG4 datasheet by Texas Instruments

DAC8812ICPWG4 Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the DAC8812?
  The recommended power-up sequence is to apply VCC first, followed by AVCC, and then the digital inputs. This ensures that the internal voltage regulators are powered up correctly.
• How do I ensure accurate voltage output from the DAC?
  To ensure accurate voltage output, it's essential to use a low-noise, low-impedance voltage reference, and to decouple the VREF pin with a capacitor to reduce noise. Additionally, ensure that the output load is within the specified range.
• What is the maximum output current of the DAC8812?
  The maximum output current of the DAC8812 is 5mA. Exceeding this current may cause the output voltage to droop or the device to overheat.
• How do I handle the DAC8812's digital inputs during power-up and power-down?
  During power-up and power-down, it's recommended to keep the digital inputs in a high-impedance state or tie them to a fixed logic level to prevent unwanted output voltage transitions.
• What is the purpose of the CLR pin, and how do I use it?
  The CLR pin is an asynchronous clear input that resets the DAC output to zero-scale (minimum output voltage) when asserted low. It can be used to reset the DAC output during power-up or in applications where a known output state is required.