The recommended power-up sequence is to apply VCC first, followed by AVCC, and then the digital supply (DVCC). This ensures that the analog and digital circuits are powered up in the correct order.
To ensure accurate voltage output, it is essential to use a stable reference voltage, minimize noise on the analog input pins, and use a low-noise power supply. Additionally, the output voltage should be buffered with an op-amp to prevent loading effects.
The maximum output current of the DAC7611P is 5 mA. Exceeding this current limit can cause damage to the device or affect its accuracy.
The SYNC pin is used to synchronize the DAC's output with an external clock signal. It should be tied to a clock signal or grounded if not used. Leaving it floating can cause unpredictable behavior.
The CLR pin is used to clear the DAC's output to zero scale. It can be used to reset the output voltage to zero during power-up or when the device is not in use.
DAC7611P datasheet
by Texas Instruments
