The DAC1054 is a complete quad 10-bit voltage-output digital-to-analog converter that can operate on a single 5V supply It includes on-chip output amplifiers internal voltage reference and serial microprocessor interface By combining in one package the reference amplifiers and conversion circuitry for four D A converters the DAC1054 minimizes wiring and parts count and is hence ideally suited for applications where cost and board space are of prime concern The DAC1054 also has a data readback function which can be used by the microprocessor to verify that the desired input word has been properly latched into the DAC1054's data registers The data readback function simplifies the design and reduces the cost of systems which need to verify data integrity