DAC5687IPZPR datasheet by Texas Instruments

DAC5687IPZPR Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the DAC5687IPZPR?
  The recommended power-up sequence is to apply the analog supply voltage (AVCC) first, followed by the digital supply voltage (DVCC) and then the clock signal. This ensures proper initialization of the device.
• How do I ensure accurate voltage output from the DAC5687IPZPR?
  To ensure accurate voltage output, it is essential to use a low-noise, low-impedance voltage reference, and to decouple the analog supply voltage (AVCC) with a 10uF capacitor. Additionally, the output voltage should be filtered with a low-pass filter to reduce noise and ripple.
• What is the maximum clock frequency that the DAC5687IPZPR can handle?
  The DAC5687IPZPR can handle clock frequencies up to 50 MHz. However, it is recommended to operate the device at a clock frequency of 20-30 MHz for optimal performance.
• How do I implement a bipolar output voltage range with the DAC5687IPZPR?
  To implement a bipolar output voltage range, you can use an external amplifier circuit to invert and scale the output voltage. Alternatively, you can use an external voltage reference to generate a negative voltage supply for the DAC.
• What is the settling time of the DAC5687IPZPR, and how does it affect my system design?
  The settling time of the DAC5687IPZPR is approximately 2.5us. This means that the output voltage may take up to 2.5us to settle to its final value after a code change. You should ensure that your system design takes into account this settling time to avoid errors or inaccuracies.