DS4402/DS4404 + 19-4641 Rev 3 5/09 2 Two/Four-Channel, I C Adjustable Current DAC General Description Features 2 Two (DS4402) or Four (DS4404) Current DACs The DS4402 and DS4404 contain two and four I C adjustable current DACs, respectively, that are each Full-Scale Range for Each DAC Determined by capable of sinking or sourcing current. Each output has External Resistors 31 sink and 31 source settings that are programmed by 31 Settings Each for Sink and Source Modes 2 the I C interface. External resistors set the full-scale 2 I C-Compatible Serial Interface range and step size of each output. Two Three-Level Address Pins Allow Nine Applications 2 Devices on Same I C Bus Power-Supply Adjustment Small Package (14-Pin TDFN) -40C to +85C Temperature Range Power-Supply Margining 2.7V to 5.5V Operation Adjustable Current Sink or Source Pin Configuration Ordering Information PART TEMP RANGE PIN-PACKAGE TOP VIEW DS4402N+ -40C to +85C 14 TDFN-EP* SDA 1 14 OUT3 (N.C.) DS4402N+T&R -40C to +85C 14 TDFN-EP* 2 13 SCL V DS4404N+ -40C to +85C 14 TDFN-EP* CC OUT2 (N.C.) DS4404N+T&R -40C to +85C 14 TDFN-EP* GND 3 12 +Denotes a lead(Pb)-free/RoHS-compliant package. FS3 (N.C.) 4 11 A1 T&R = Tape and reel. DS4404/ 10 OUT1 FS2 (N.C.) 5 DS4402 *EP = Exposed pad. FS1 6 9 A0 *EP FS0 7 8 OUT0 TDFN (3mm 3mm 0.8mm) *EXPOSED PAD ( ) INDICATES FOR DS4402 ONLY. Typical Operating Circuit V V CC OUT0 V OUT1 OUT OUT 4.7k 4.7k V CC SDA DC/DC DC/DC R R 0A 1A CONVERTER CONVERTER SCL FB FB A1 DS4402 OUT0 A0 OUT1 GND R R 0B 1B FS0 FS1 R R FS0 FS1 Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.2 Two/Four-Channel, I C Adjustable Current DAC ABSOLUTE MAXIMUM RATINGS Voltage Range on V , SDA, and SCL Operating Temperature Range ...........................-40C to +85C CC Relative to Ground.............................................-0.5V to +6.0V Storage Temperature Range .............................-55C to +125C Voltage Range on A0, A1, FS0, FS1, FS2, FS3, Soldering Temperature .....................................Refer to IPC/JEDEC OUT0, OUT1, OUT2, and OUT3 Relative to J-STD-020 Specification Ground ................-0.5V to (V + 0.5V) (Not to exceed 6.0V.) CC Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. RECOMMENDED OPERATING CONDITIONS (T = -40C to +85C.) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V (Note 1) 2.7 5.5 V CC Input Logic 1 (SDA, SCL, A0, A1) V 0.7 x V V + 0.3 V IH CC CC Input Logic 0 (SDA, SCL, A0, A1) V -0.3 0.3 x V V IL CC DC ELECTRICAL CHARACTERISTICS (V = +2.7V to +5.5V, T = -40C to +85C.) CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DS4402 500 V = 5.5V CC Supply Current I A CC (Note 2) DS4404 500 Input Leakage (SDA, SCL) I V = 5.5V 1 A IL CC Output Leakage (SDA) I 1 A L V = 0.4V 3 OL Output Current Low (SDA) I mA OL V = 0.6V 6 OL Address Input Resistors R 240 k IN Reference Voltage V 1.23 V REF I/O Capacitance C 10 pF I/O OUTPUT CURRENT CHARACTERISTICS (V = +2.7V to +5.5V, T = -40C to +85C.) CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Output Voltage for Sinking Current V (Note 3) 0.5 V V OUT:SINK CC Output Voltage for Sourcing V - CC V (Note 3) 0 V OUT:SOURCE Current 0.5 Full-Scale Sink Output Current I (Note 3) 0.5 2.0 mA OUT:SINK Full-Scale Source Output Current I (Note 3) -2.0 -0.5 mA OUT:SOURCE +25C, V = 4.0V using ideal R CC FS Output-Current Full-Scale I resistor V = 0.5V 2.5 5.0 % OUT:SINK OUT:FS Accuracy V = V - 0.8V OUT:SOURCE CC Output-Current Temperature Drift I (Note 4) 70 ppm/C OUT:TC 2 DS4402/DS4404