DAC908EG4 datasheet by Texas Instruments

DAC908EG4 Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the DAC908EG4?
  The recommended power-up sequence is to apply VCC first, followed by AVCC, and then the digital supply (VDD). This ensures that the analog and digital sections of the device are powered up correctly.
• How do I ensure accurate output voltage from the DAC908EG4?
  To ensure accurate output voltage, it is essential to use a high-quality reference voltage source, ensure proper PCB layout and decoupling, and follow the recommended output filtering and buffering configurations.
• What is the maximum output current capability of the DAC908EG4?
  The maximum output current capability of the DAC908EG4 is 10 mA per channel. Exceeding this limit can cause damage to the device or affect its performance.
• How do I handle the DAC908EG4's digital interface during power-down or reset?
  During power-down or reset, it is recommended to tri-state the digital interface (SCLK, SDIN, and SYNC) to prevent any unwanted data transmission or reception.
• What is the recommended clock frequency range for the DAC908EG4's digital interface?
  The recommended clock frequency range for the DAC908EG4's digital interface is 10 kHz to 50 MHz. Operating outside this range may affect the device's performance or cause errors.