Dual-Channel, I²C Adjustable Sink/Source Current DAC

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.

Applications

* Adjustable Current Sink or Source * Power-Supply Adjustment * Power-Supply Margining

* 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