General Description

The DS4412 contains two I2C adjustable-current DACs that are each capable of sinking or sourcing current. Each output has 15 sink and 15 source settings that are programmed by I2C interface. The full-scale range and step size of each output is determined by an external resistor that can adjust the output current over a 4:1 range.

The output pins, OUT0 and OUT1, power-up in a high impedance state.

Features

♦ Two Current DACs

♦ Full-Scale Current 500µA to 2mA

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

♦ 15 Settings Each for Sink and Source Modes

♦ I2C-Compatible Serial Interface

♦ Low Cost

♦ Small Package (8-Pin µSOP)

♦ -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