DS4402

19-4641; Rev 3; 5/09 DS4402/DS4404 + 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. Applications Power-Supply Adjustment Power-Supply Margining Adjustable Current Sink or Source Pin Configuration 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 Ordering Information TOP VIEW SDA 1 SCL 2 GND 3 FS3 (N.C.) 4 FS2 (N.C.) 5 FS1 6 FS0 7 DS4404/ DS4402 *EP 14 OUT3 (N.C.) 13 VCC 12 OUT2 (N.C.) 11 A1 10 OUT1 9 A0 8 OUT0 PART TEMP RANGE PIN-PACKAGE DS4402N+ -40°C to +85°C 14 TDFN-EP* DS4402N+T&R -40°C to +85°C 14 TDFN-EP* DS4404N+ -40°C to +85°C 14 TDFN-EP* DS4404N+T&R -40°C to +85°C 14 TDFN-EP* +Denotes a lead(Pb)-free/RoHS-compliant package. T&R = Tape and reel. *EP = Exposed pad. TDFN (3mm × 3mm × 0.8mm) *EXPOSED PAD ( ) INDICATES FOR DS4402 ONLY. Typical Operating Circuit VCC VOUT0 VOUT1 4.7kΩ 4.7kΩ SDA SCL A1 A0 GND VCC DS4402 OUT0 OUT1 O...