The recommended power-up sequence is to power up the digital supply (VDD) first, followed by the analog supply (AVDD). This ensures that the digital circuitry is powered up before the analog circuitry, which helps to prevent any potential latch-up or damage to the device.
To ensure accurate voltage output from the DAC8801, it is recommended to use a high-precision voltage reference, such as the Texas Instruments REF5025. Additionally, the output voltage should be filtered using a low-pass filter to remove any noise or ripple.
The maximum output current of the DAC8801 is 10mA. However, it is recommended to limit the output current to 5mA or less to ensure accurate voltage output and to prevent overheating of the device.
The DAC8801 can be interfaced with a microcontroller using a serial interface, such as SPI or I2C. The microcontroller can send digital data to the DAC8801, which is then converted to an analog voltage output. The interface protocol and pin connections are described in the datasheet.
The settling time of the DAC8801 is typically around 10μs, but can vary depending on the output voltage range and the load capacitance. The settling time is the time it takes for the output voltage to settle to within 1% of its final value after a code change.
DAC8801IDGKTG4 datasheet
by Texas Instruments
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