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 potential latch-up conditions.
The output voltage range of the DAC1280IPWR is dependent on the VREF input. To ensure accurate output voltages, VREF should be set to a voltage that allows the desired output range to be achieved. For example, if a 0-5V output range is desired, VREF should be set to 5V.
Clock jitter can affect the DAC1280IPWR's performance by introducing noise and distortion into the output signal. To minimize the effects of clock jitter, a low-jitter clock source should be used, and the clock signal should be properly filtered and decoupled.
To ensure accurate output voltages when using the DAC1280IPWR in a multiplexed configuration, the output voltage should be allowed to settle before switching to the next channel. The settling time can be calculated based on the output capacitance and the desired settling accuracy.
The recommended layout and routing for the DAC1280IPWR's digital inputs is to keep the digital traces short and away from analog signals, use a solid ground plane, and avoid crossing digital signals over analog signals. This helps to minimize digital noise and ensure accurate device operation.
DAC1280IPWR datasheet
by Texas Instruments
