The recommended power-up sequence is to apply VDD first, followed by VREF, and then the digital interface signals (SCLK, SDIN, and SYNC). This ensures proper device operation and prevents potential latch-up conditions.
The DAC8228 has a rail-to-rail output stage, but the output voltage range is limited by the VREF input. Ensure that the output voltage range is within the specified range of VREF to avoid output stage saturation and ensure accurate performance.
Clock jitter can affect the DAC8228's performance by introducing noise and distortion in the output signal. It is recommended to use a low-jitter clock source and to follow proper PCB layout and design practices to minimize clock jitter.
To implement a bipolar output configuration, connect the output of the DAC8228 to a resistive divider network that provides a virtual ground reference. This allows the output voltage to swing both positive and negative with respect to the virtual ground.
It is recommended to route the digital interface signals (SCLK, SDIN, and SYNC) as a differential pair, with matched impedance and length, to minimize noise and crosstalk. Additionally, keep these signals away from the analog output and VREF pins to prevent noise coupling.
DAC8228SPAG datasheet
by Texas Instruments
