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