Texas Instruments provides a recommended layout and routing guide in the DAC8802IPWRG4 evaluation module user's guide (SLAU445). It's essential to follow this guide to minimize noise and ensure optimal performance.
To configure the DAC8802IPWRG4 for bipolar output voltage operation, set the VREF pin to a voltage that is twice the desired output voltage range. Then, set the offset pin (VOS) to the desired negative output voltage. Finally, configure the DAC output to swing between VREF and VOS.
The maximum output current capability of the DAC8802IPWRG4 is 10 mA. Exceeding this limit can affect the output voltage accuracy and may cause the output voltage to droop or become nonlinear. Ensure that the output current is within the specified limit to maintain optimal performance.
To synchronize multiple DAC8802IPWRG4 devices, connect the SYNC pin of each device to a common clock signal. This ensures that all devices update their outputs simultaneously, which is essential in applications requiring coordinated output transitions.
The recommended power-up sequence for the DAC8802IPWRG4 is to apply the power supply voltage (VCC) first, followed by the reference voltage (VREF), and finally the digital input signals. This sequence helps prevent output glitches or incorrect operation during power-up.
DAC8802IPWRG4 datasheet
by Texas Instruments
