2 DS4422/DS4424 Two-/Four-Channel, I C, 7-Bit Sink/Source Current DAC General Description Benefits and Features 2 The DS4422 and DS4424 contain two or four I C Two (DS4422) or Four (DS4424) Current DACs programmable current DACs that are each capable of Full-Scale Current 50A to 200A sinking and sourcing current up to 200A. Each DAC Full-Scale Range for Each DAC Determined by output has 127 sink and 127 source settings that are External Resistors 2 programmed using the I C interface. The current DAC 127 Settings Each for Sink and Source Modes outputs power up in a high-impedance state. 2 I C-Compatible Serial Interface Applications Two Address Pins Allow Four Devices on Same Power-Supply Adjustment 2 I C Bus Power-Supply Margining Low Cost Adjustable Current Sink or Source Small Package (14-Pin, 3mm x 3mm TDFN) Ordering Information -40C to +85C Temperature Range PIN- 2.7V to 5.5V Operating Range PART OUTPUTS TEMP RANGE PACKAGE DS4422N+ 2 -40C to +85C 14 TDFN-EP DS4422N+T&R 2 -40C to +85C 14 TDFN-EP Pin Configuration appears at end of data sheet. DS4424N+ 4 -40C to +85C 14 TDFN-EP DS4424N+T&R 4 -40C to +85C 14 TDFN-EP +Denotes a lead(Pb)-free/RoHS-compliant package. T&R = Tape and reel. EP = Exposed pad. Typical Operating Circuit V V CC OUT0 V OUT1 R R OUT OUT V PU PU CC SDA DC-DC DC-DC R R 0A 1A CONVERTER CONVERTER SCL DS4422/ FB FB A1 OUT0 DS4424 A0 OUT1 GND R R 0B 1B FS0 FS1 R R FS0 FS1 19-4744 Rev 2 9/172 DS4422/DS4424 Two-/Four-Channel, I C, 7-Bit Sink/Source 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 the 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 R , R , FS0 FS1 Full-Scale Resistor Values (Note 2) 40 160 k R , R FS2 FS3 DC Electrical Characteristics (V = +2.7V to +5.5V, T = -40C to +85C.) CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DS4422 250 V = 5.5V CC Supply Current I A CC (Note 3) DS4424 250 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 RFS Voltage V 0.976 V RFS I/O Capacitance C 10 pF I/O Output Current Source 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 4) 0.5 3.5 V OUT:SINK Output Voltage for Sourcing V - CC V (Note 4) 0 V OUT:SOURCE Current 0.75 Full-Scale Sink Output Current I (Notes 1, 4) 50 200 A OUT:SINK Full-Scale Source Output Current I (Notes 1, 4) -200 -50 A OUT:SOURCE Output Current Full-Scale +25C, V = 3.3V using 0.1% R resistor CC FS I 6 % OUT:FS Accuracy (Note 2), V = V = 1.2V OUT0 OUT1 Output Current Temperature I (Note 5) 75 ppm/C OUT:TC Coefficient Maxim Integrated 2 www.maximintegrated.com