DAC811JU/1K datasheet by Texas Instruments

DAC811JU/1K Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the DAC811JU/1K?
  The recommended power-up sequence is to apply VCC first, followed by VREF, and then the digital inputs. This ensures proper device operation and prevents potential latch-up conditions.
• How do I ensure accurate voltage output from the DAC811JU/1K?
  To ensure accurate voltage output, it's essential to use a high-quality voltage reference (VREF) and to decouple the VREF pin with a capacitor to reduce noise. Additionally, ensure that the output load is within the specified range and that the output voltage is not exceeded.
• What is the maximum output current of the DAC811JU/1K?
  The maximum output current of the DAC811JU/1K is 5mA. Exceeding this current may cause the output voltage to droop or the device to overheat.
• Can I use the DAC811JU/1K in a ratiometric configuration?
  Yes, the DAC811JU/1K can be used in a ratiometric configuration, where the output voltage is proportional to the reference voltage (VREF). This can be useful in applications where the output voltage needs to track changes in the reference voltage.
• How do I handle the digital inputs of the DAC811JU/1K during power-down?
  During power-down, it's recommended to hold the digital inputs in a static state (either high or low) to prevent unwanted output voltage transitions. This can be achieved by using a pull-up or pull-down resistor on the digital input pins.