DAC7634EB datasheet by Texas Instruments

DAC7634EB Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the DAC7634EB?
  The recommended power-up sequence is to apply VCC first, followed by AVCC, and then the digital supply (DVCC). This ensures that the analog circuitry is powered up before the digital circuitry.
• How do I ensure accurate voltage output from the DAC7634EB?
  To ensure accurate voltage output, it is essential to use a high-precision voltage reference, such as the REF5025 or REF5030, and to follow proper PCB layout and grounding techniques to minimize noise and interference.
• What is the maximum output current of the DAC7634EB?
  The maximum output current of the DAC7634EB is 10 mA. Exceeding this current limit can cause damage to the device or affect its accuracy.
• Can I use the DAC7634EB in a ratiometric configuration?
  Yes, the DAC7634EB can be used in a ratiometric configuration, where the output voltage is proportional to the reference voltage. This can be useful in applications where the output voltage needs to track changes in the reference voltage.
• How do I handle the DAC7634EB's digital interface?
  The DAC7634EB's digital interface is a 3-wire serial interface. To handle it, you need to ensure that the clock frequency is within the specified range (10 kHz to 50 MHz), and that the data is transmitted in the correct format (MSB first, 16-bit word).