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DS4422

Maxim Integrated Products
Part Number DS4422
Manufacturer Maxim Integrated Products
Description 7-Bit Sink/Source Current DAC
Published Aug 18, 2008
Detailed Description DS4422/DS4424 Two-/Four-Channel, I2C, 7-Bit Sink/Source Current DAC General Description The DS4422 and DS4424 contain ...
Datasheet PDF File DS4422 PDF File

DS4422
DS4422

Overview
DS4422/DS4424 Two-/Four-Channel, I2C, 7-Bit Sink/Source Current DAC General Description The DS4422 and DS4424 contain two or four I2C programmable current DACs that are each capable of sinking and sourcing current up to 200μA.
Each DAC output has 127 sink and 127 source settings that are programmed using the I2C interface.
The current DAC outputs power up in a high-impedance state.
Applications ●● Power-Supply Adjustment ●● Power-Supply Margining ●● Adjustable Current Sink or Source Ordering Information PART OUTPUTS TEMP RANGE PINPACKAGE DS4422N+ 2 -40°C to +85°C 14 TDFN-EP DS4422N+T&R 2 -40°C to +85°C 14 TDFN-EP DS4424N+ 4 -40°C to +85°C 14 TDFN-EP DS4424N+T&R 4 -40°C to +85°C 14 TDFN-EP +Denotes a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
EP = Exposed pad.
Typical Operating Circuit Benefits and Features ●● Two (DS4422) or Four (DS4424) Current DACs ●● Full-Scale Current 50μA to 200μA ●● Full-Scale Range for Each DAC Determined by External Resistors ●● 127 Settings Each for Sink and Source Modes ●● I2C-Compatible Serial Interface ●● Two Address Pins Allow Four Devices on Same I2C Bus ●● Low Cost ●● Small Package (14-Pin, 3mm x 3mm TDFN) ●● -40°C to +85°C Temperature Range ●● 2.
7V to 5.
5V Operating Range Pin Configuration appears at end of data sheet.
RPU RPU VCC SDA SCL DS4422/ A1 DS4424 OUT0 A0 OUT1 GND FS0 RFS0 FS1 RFS1 VCC VOUT0 OUT DC-DC CONVERTER FB R0A R0B VOUT1 OUT DC-DC CONVERTER FB R1A R1B 19-4744; Rev 2; 9/17 DS4422/DS4424 Two-/Four-Channel, I2C, 7-Bit Sink/Source Current DAC Absolute Maximum Ratings Voltage Range on VCC, SDA, and SCL Relative to Ground.
.
.
.
-0.
5V to +6.
0V Voltage Range on A0, A1, FS0, FS1, FS2, FS3, OUT0, OUT1, OUT2, and OUT3 Relative to Ground -0.
5V to (VCC + 0.
5V) (Not to exceed 6.
0V.
) Operating Temperature Range.
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-40°C to +85°C Storage Temperature Range.
.
.
.
-55°C to +125°C S...


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