General Description

The DS4402 and DS4404 contain two and four I2C adjustable current DACs, respectively, that are each capable of sinking or sourcing current. Each output has 31 sink and 31 source settings that are programmed by the I2C interface. External resistors set the full-scale range and step size of each output.

Features

♦ Two (DS4402) or Four (DS4404) Current DACs

♦ Full-Scale Range for Each DAC Determined by External Resistors

♦ 31 Settings Each for Sink and Source Modes

♦ I2C-Compatible Serial Interface

♦ Two Three-Level Address Pins Allow Nine Devices on Same I2C Bus

♦ Small Package (14-Pin TDFN)

♦ -40°C to +85°C Temperature Range

♦ 2.7V to 5.5V Operation

Applications

  Power-Supply Adjustment

  Power-Supply Margining

  Adjustable Current Sink or Source