DAC3484IRKDR datasheet by Texas Instruments

DAC3484IRKDR Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the DAC3484?
  The recommended power-up sequence is to apply VDD first, followed by AVDD, and then the digital supply (DVDD). This ensures that the internal analog and digital circuits are properly initialized.
• How do I optimize the performance of the DAC3484 in terms of noise and distortion?
  To optimize performance, use a low-noise power supply, decouple the power pins with high-quality capacitors, and use a low-impedance output load. Additionally, ensure that the analog and digital grounds are separated and connected at a single point to minimize noise coupling.
• What is the maximum output current of the DAC3484?
  The maximum output current of the DAC3484 is 20mA per channel. Exceeding this current may cause damage to the device or affect its performance.
• Can I use the DAC3484 with a single 3.3V power supply?
  Yes, the DAC3484 can operate with a single 3.3V power supply. However, the analog output voltage range will be limited to 0V to 2.5V. If a wider output range is required, a separate analog power supply (AVDD) can be used.
• How do I implement a bipolar output voltage range with the DAC3484?
  To implement a bipolar output voltage range, use an external op-amp to amplify and shift the output voltage. The op-amp can be configured to provide a gain of -1 and an offset voltage to achieve the desired bipolar range.