The LTC1453IS8#PBF is a complete single supply rail-to-rail voltage output 12-bit Digital-to-analog Converter (DAC) includes an output buffer amplifier and an easy-to-use 3-wire cascadable serial interface. The LTC1453 has an on board 1.22V reference and a full-scale output of 2.5V. It operates from a single supply of 2.7 to 5.5V.
Buffered true rail-to-rail voltage output
Power-on reset
Maximum DNL error - 0.5LSB
Schmitt trigger on clock input allows direct optocoupler interface