General Description

The MAX512/MAX513 contain three 8-bit, voltage-output digital-to-analog converters (DAC A, DAC B, and DAC C). Output buffer amplifiers for DACs A and B provide voltage outputs while reducing external component count. The output buffer for DAC A can source or sink 5mA to within 0.5V of VDD or VSS. The buffer for DAC B can source or sink 0.5mA to within 0.5V of VDD or VSS. DAC C is unbuffered, providing a third voltage output with increased accuracy. 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 operate with split supplies.

Features

? Operate from a Single +5V (MAX512) or +3V (MAX513) Supply, or from Bipolar Supplies

? Low Power Consumption 1mA Operating Current <1μA Shutdown Current

? Unipolar or Bipolar Outputs

? 5MHz, 3-Wire Serial Interface

? SPI, QSPI, and Microwire Compatible

? Two Buffered, Bipolar-Output DACs (DACs A/B)

? Independently Programmable Shutdown Mode

? Space-Saving 14-Pin SO/DIP Packages

? Pin and Software Reset

Applications

??? Digital Gain and Offset Adjustment

??? Programmable Attenuators

??? Programmable Current Sources

??? Programmable Voltage Sources

??? RF Digitally Adjustable Bias Circuits

??? VCO Tuning