The recommended power-up sequence is to apply VDD first, followed by VREF, and then the digital inputs. This ensures proper device operation and prevents potential latch-up conditions.
To ensure accurate voltage output, it's essential to use a stable and low-noise voltage reference (VREF) and to decouple the VREF pin with a capacitor to ground. Additionally, the output voltage should be buffered with an op-amp if it's not connected to a high-impedance load.
The maximum output current of the DAC7811 is 5mA. Exceeding this current may cause the output voltage to droop or the device to overheat.
During power-down or reset, the digital inputs should be driven low or placed in a high-impedance state to prevent unwanted DAC output transitions. This ensures that the DAC output remains stable and doesn't cause any system disturbances.
No, the DAC7811 is designed to operate with a single-supply voltage (VDD) and a voltage reference (VREF) that is referenced to the analog ground (AGND). It's not suitable for use with bipolar voltage supplies.
DAC7811IDGSG4 datasheet
by Texas Instruments
