DS4424
Info: : PRODUCTION
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DS4424

Two-/Four-Channel, I²C, 7-Bit Sink/Source Current DAC

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Low-Cost, Sink/Source Current DACs Simplify Power-Supply Margin Testing

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $1.21
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 Input 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
Additional Details
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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

  • Adjustable Current Sink or Source
  • Power-Supply Adjustment
  • Power-Supply Margining
Part Models 2
1ku List Price Starting From $1.21

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
DS4424N+
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  • HTML
DS4424N+T&R
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Software & Part Ecosystem

Software & Part Ecosystem

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Evaluation Kit

Evaluation Kits 1

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DS4424EVKIT

Evaluation Kit for the DS4422 and DS4424

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DS4424EVKIT

Evaluation Kit for the DS4422 and DS4424

Evaluation Kit for the DS4422 and DS4424

Features and Benefits

  • Easy Evaluation of the DS4424
  • EV Kit Hardware is USB Powered
  • USB HID Interface
  • Windows XP®- and Windows® 7-Compatible Software
  • RoHS Compliant
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Detail

The DS4422 and DS4424 contain two or four I2C-programmable current DACs that are each capable of sinking and sourcing current up to 200µA.
The DS4424 evaluation kit (EV kit) provides the hardware and software graphical user interface (GUI) necessary to evaluate the DS4424 4-channel, 7-bit sink/source current DAC. The DS4422 has the same performance as the DS4424, except with only two channels.
The EV kit includes a DS4424 installed, as well as two populated full-scale calibration resistors (R3 and R4) and two unpopulated resistors (R5 and R6). This allows the device to be evaluated without any board rework on two channels but enables a custom-defined value to be populated on the two open channels. The EV kit also has the USB-to-I2C interface required to communicate to the device.

Applications

  • Adjustable Current Sink or Source
  • Power-Supply Adjustment
  • Power-Supply Margining

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