GENERAL DESCRIPTION
External resistors set the full-scale range of each output. Power-supply tracking functionality is provided for three channels using dedicated control inputs. Once power-supply tracking is accomplished, the current outputs default to zero. Two address pins allow up to four DS4426 devices to exist on the same I2C bus. FEATURES
♦ Four Current DACs 50µA to 200µA Adjustable Full-Scale Range 127 Settings Each for Sink and Source ♦ Power-Supply Tracking Power-Supply Sequencing Ramp-Up and Ramp-Down Tracking Control Ratiometric Tracking Support ♦ +2.7V to +5.5V Operation ♦ I2C-Compatible Serial Interface ♦ Two Address Input Pins Allow Up to Four Devices on Same I2C Bus ♦ Lead-Free, 28-Pin TQFN Package (4mm x 4mm) with Exposed Pad ♦ Industrial Temperature Range: -40°C to +85°C DS4426 APPLICATIONS
Power-Supply Adjustment Power-Supply Margining Power-Supply Tracking Adjustable Current Sink or Source Pin Configuration PART THR1 THR2 THR3 Ordering Information TEMP RANGE -40°C to +85°C -40°C to +85°C PIN-PACKAGE 28 TQFN-EP* 28 TQFN-EP* DS4426T+ DS4426T+T&R TOP VIEW 21 FS1 22 FS2 23 FS3 24 GAIN3 25 GAIN2 26 GAIN1 27 N.C.
Maxim Integrated
