The recommended power-up sequence is to apply VDD first, followed by VREF, and then the digital supply (VCC). This ensures proper device operation and prevents potential latch-up conditions.
The DAC8162 has a rail-to-rail output stage, but the output voltage range is limited by the VREF pin. To achieve the full output range, ensure that VREF is set to the desired maximum output voltage, and the output voltage will swing from 0V to VREF.
Clock jitter can affect the DAC8162's performance by introducing noise and distortion in the output signal. To minimize the impact of clock jitter, use a high-quality clock source with low jitter, and consider using a clock jitter attenuator or a phase-locked loop (PLL) to clean up the clock signal.
To implement a bipolar output configuration, connect the output of the DAC8162 to an op-amp configured as an inverting amplifier. This will allow the output voltage to swing from -VREF to +VREF. Ensure that the op-amp is properly biased and has sufficient bandwidth to handle the output signal.
To minimize digital noise and ensure reliable operation, follow these layout and routing guidelines: keep digital signal traces short and away from analog signals, use a solid ground plane, and avoid crossing digital signals over analog signals. Additionally, use a low-impedance digital supply (VCC) and decouple it with a 0.1uF capacitor to the digital ground.
DAC8162TDGSR datasheet
by Texas Instruments
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