The recommended power-up sequence is to apply VCC first, followed by AVCC, and then the digital supply (VCCIO). This ensures that the internal voltage regulators are powered up correctly.
To ensure accurate output voltage levels, it is essential to use a high-quality external voltage reference (VREF) and to decouple the VREF pin with a capacitor to reduce noise. Additionally, the output voltage levels can be calibrated using the internal calibration registers.
The maximum output current that the DAC5672AIPFBR can drive is 20 mA per channel. However, it is recommended to limit the output current to 10 mA per channel to ensure reliable operation and to prevent overheating.
To implement a bipolar output voltage range, you can use an external amplifier circuit to invert and scale the output voltage. Alternatively, you can use the internal offset and gain registers to adjust the output voltage range.
The recommended clock frequency for the DAC5672AIPFBR is between 10 MHz and 40 MHz. However, the device can operate at clock frequencies up to 50 MHz, but with reduced performance and increased power consumption.
DAC5672AIPFBR datasheet
by Texas Instruments
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