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The AD5664ARMZ is a quad, 16-bit buffered voltage-output digital-to-analog converter (DAC) from the nanoDAC family. It operates on a single 2.7 V to 5.5 V supply and requires an external reference voltage to set the output range. The device features rail-to-rail output swing, guaranteed monotonicity by design, and a power-on reset circuit that ensures outputs start at 0 V. It utilizes a versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards, supporting clock rates up to 50 MHz. Typical power consumption is 1.32 mW at 3 V and 2.25 mW at 5 V.
Verify the specific package variant against the datasheet outline dimensions. Confirm the required external reference voltage source matches the application's accuracy needs. Ensure the serial interface timing meets the 50 MHz maximum clock rate specification if high-speed operation is intended.
Select this component when four independent 16-bit voltage outputs are required in a low-power environment. The AD5664 differs from the AD5624 only in resolution; choose based on the necessary precision. An external reference must be provided, unlike internal reference variants in the R-series.
This part belongs to the AD5624/AD5664 nanoDAC series, which are low-power, quad-channel devices. The AD5664 specifically provides 16-bit resolution compared to the 12-bit AD5624. Both require an external reference, distinguishing them from the AD56XXR series which includes internal references.
The AD5624 offers identical functionality with 12-bit resolution. The AD5664R series provides similar performance but includes an internal reference.