DAC8718SRGZR datasheet by Texas Instruments

DAC8718SRGZR Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the DAC8718?
  The recommended power-up sequence is to apply VCC first, followed by AVCC, and then the digital supply (DVCC). This ensures proper device operation and prevents latch-up.
• How do I ensure accurate voltage output from the DAC?
  To ensure accurate voltage output, it's essential to use a high-precision voltage reference (VREF) and to decouple the analog supply (AVCC) with a 10uF capacitor. Additionally, ensure the output load is within the recommended range (1kΩ to 10kΩ).
• What is the maximum output current of the DAC8718?
  The maximum output current of the DAC8718 is 5mA. Exceeding this limit may cause device damage or affect output accuracy.
• How do I handle the DAC8718's digital interface during power-down or reset?
  During power-down or reset, it's recommended to tri-state the digital interface (SDI, SCK, and CS) to prevent unwanted data transmission or device malfunction.
• What is the purpose of the DAC8718's internal voltage reference (VREF)?
  The internal voltage reference (VREF) provides a stable voltage reference for the DAC, ensuring accurate output voltage. It can also be used as a reference for other devices in the system.