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Two/Four-Channel, I²C Adjustable Current DAC

Two and Four I²C Adjustable Current Sources Capable of Sinking or Sourcing Current

Product Details

Key Features

Applications/Uses

Parametric specs for Precision DACs (< 1MHz)
Resolution (bits) 5
# Channels 4
Interface Serial - I2C
Output Type Current- Buffered
Reference Ext.
INL (±LSB) (max) 1
Supply Range (V) (min) 2.7
Supply Range (V) (max) 5.5
ICC (mA) (max) 0.5
Package/Pins TDFN/14
Oper. Temp. (°C) -40 to +85
Budgetary
Price (See Notes)
0.88
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Simplified Block Diagram

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Parameters

Parametric specs for Precision DACs (&lt; 1MHz)
Resolution (bits) 5
# Channels 4
Interface Serial - I2C
Output Type Current- Buffered
Reference Ext.
INL (±LSB) (max) 1
Supply Range (V) (min) 2.7
Supply Range (V) (max) 5.5
ICC (mA) (max) 0.5
Package/Pins TDFN/14
Oper. Temp. (°C) -40 to +85
Budgetary
Price (See Notes)
0.88

Key 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

Applications/Uses

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

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.

Simplified Block Diagram

DS4402, DS4404: Typical Operating Circuit DS4402, DS4404: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .