AD5791,pdf,datasheet,1PPM DAC

The AD5791 is a single 20-bit, unbuffered voltage-output DAC that operates from a bipolar supply of up to 33V. The AD5791 accepts a positive reference input in the range 4V to VDD – 2.5V and a negative reference input in the range VSS + 2.5 V to 0V. The AD5791 offers a relative accuracy specification of ±1 LSB max, and operation is guaranteed monotonic with a ±1 LSB DNL max specification.

The part uses a versatile 3-wire serial interface that operates at clock rates up to 50 MHz and that is compatible with standard SPI?, QSPI?, MICROWIRE?, and DSP interface standards. The part incorporates a power-on reset circuit that ensures the DAC output powers up to 0V and in a known output impedance state and remains in this state until a valid write to the device takes place. The part provides a disable feature that places the output in a defined load state

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