The MAX512/MAX513 contain three 8-bit, voltage-outputdigital-to-analog converters (DAC A, DAC B, and DAC C).Output buffer amplifiers for DACs A and B provide voltageoutputs while reducing external component count. Theoutput buffer for DAC A can source or sink 5mA to within0.5V of VDD or VSS. The buffer for DAC B can source orsink 0.5mA to within 0.5V of VDD or VSS. DAC C isunbuffered, providing a third voltage output with increasedaccuracy. The MAX512 operates with a single+5V ±10% supply, and the MAX513 operates with a+2.7V to +3.6V supply. Both devices can also operatewith split supplies.The 3-wire serial interface has a maximum operating frequencyof 5MHz and is compatible with SPI™, QSPI™,and Microwire™. The serial input shift register is 16 bitslong and consists of 8 bits of DAC input data and 8 bitsfor DAC selection and shutdown. DAC registers can beloaded independently or in parallel at the positive edgeof–C—S –. A latched logic output is also available for auxiliarycontrol.Ultra-low power consumption and small packages(14-pin DIP/SO) make the MAX512/MAX513 ideal forportable and battery-powered applications. Supply currentis only 1mA, dropping to less than 1μA in shutdown.Any of the three DACs can be independently shut down.In shutdown mode, the DAC's R-2R ladder network isdisconnected from the reference input, minimizing systempower consumption.________________________ApplicationsDigital Gain and Offset AdjustmentProgrammable AttenuatorsProgrammable Current SourcesProgrammable Voltage SourcesRF Digitally Adjustable Bias CircuitsVCO Tuning