The recommended power-up sequence is to apply VCC first, followed by AVCC, and then the digital inputs. This ensures that the internal voltage regulators are powered up correctly.
To ensure accurate voltage output, it's essential to use a stable reference voltage, minimize noise on the analog input pins, and use a low-noise power supply. Additionally, consider using a voltage reference buffer amplifier to improve accuracy.
The maximum output current of the DAC8814 is 5mA. Exceeding this current may cause damage to the device or affect its accuracy.
During power-up and power-down, it's recommended to keep the digital inputs in a high-impedance state or tie them to a fixed logic level to prevent unwanted output voltage transitions.
To minimize noise and ensure accurate operation, it's recommended to use a multi-layer PCB with a solid ground plane, keep analog and digital signals separate, and use short, direct traces for the analog output and reference voltage.
DAC8814ICDBR datasheet
by Texas Instruments
