The DS4422 and DS4424 contain two or four I²C programmable current DACs that are each capable of sinking and sourcing current up to 200μA. Each DAC output has 127 sink and 127 source settings that are programmed using the I²C interface. The current DAC outputs power up in a high-impedance state.
Two (DS4422) or Four (DS4424) Current DACs
Full-Scale Current 50µA to 200µA
Full-Scale Range for Each DAC Determined by External Resistors
127 Settings Each for Sink and Source Modes
I²C-Compatible Serial Interface
Two Address Input Pins Allow Four Devices on Same I²C Bus