DAC8551IDGKTG4 datasheet by Texas Instruments

DAC8551IDGKTG4 Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the DAC8551?
  The recommended power-up sequence is to apply VCC first, followed by AVCC, and then the digital inputs. This ensures proper device operation and prevents latch-up.
• How do I ensure accurate voltage output from the DAC8551?
  To ensure accurate voltage output, it is essential to use a stable reference voltage, minimize noise on the analog input pins, and use a low-noise power supply. Additionally, consider using a voltage reference buffer amplifier to improve accuracy.
• What is the maximum capacitance I can use on the output of the DAC8551?
  The maximum capacitance on the output of the DAC8551 is 100 nF. Exceeding this value may cause instability or oscillations in the output stage.
• How do I handle the DAC8551's digital inputs during power-up and power-down?
  During power-up and power-down, it is recommended to keep the digital inputs in a high-impedance state or tie them to a fixed logic level to prevent unwanted device operation.
• What is the thermal impedance of the DAC8551 package?
  The thermal impedance of the DAC8551 package (QFN-16) is approximately 30°C/W (junction-to-ambient) and 10°C/W (junction-to-case).