Two/Four-Channel, I2C Adjustable Current DAC
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