DAC8734SRHAT datasheet by Texas Instruments

DAC8734SRHAT Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the DAC8734SRHAT?
  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 latch-up.
• How do I ensure accurate voltage output from the DAC8734SRHAT?
  To ensure accurate voltage output, make sure to use a stable and low-noise voltage reference (VREF), and decouple the VREF pin with a capacitor to reduce noise. Additionally, use a low-impedance output buffer amplifier if the output current exceeds 5mA.
• What is the maximum output current of the DAC8734SRHAT?
  The maximum output current of the DAC8734SRHAT is 5mA. Exceeding this current may cause the output voltage to droop or the device to overheat.
• How do I handle the DAC8734SRHAT's digital inputs during power-up and power-down?
  During power-up and power-down, it is recommended to keep the digital inputs (SCLK, DIN, and SYNC) in a high-impedance state or tied to a fixed logic level to prevent unwanted device operation.
• What is the purpose of the DAC8734SRHAT's internal voltage reference?
  The internal voltage reference (VREF) is used to set the full-scale output voltage of the DAC. It can be bypassed and replaced with an external voltage reference if a different full-scale output voltage is required.