DAC908E/2K5 datasheet by Texas Instruments

DAC908E/2K5 Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the DAC908E/2K5?
  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 DAC908E/2K5?
  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 output accuracy.
• What is the maximum clock frequency that can be used with the DAC908E/2K5?
  The maximum clock frequency for the DAC908E/2K5 is 40 MHz. Exceeding this frequency may result in incorrect data conversion or device malfunction.
• How do I handle the output voltage settling time of the DAC908E/2K5?
  The output voltage settling time of the DAC908E/2K5 is typically around 10 μs. To ensure accurate output voltage, wait for the settling time to elapse before taking a measurement or using the output voltage in your application.
• Can I use the DAC908E/2K5 in a ratiometric configuration?
  Yes, the DAC908E/2K5 can be used in a ratiometric configuration, where the reference voltage is derived from the power supply voltage. However, this configuration may affect the output voltage accuracy and linearity.