DS4432

Dual-Channel, I²C Adjustable Sink/Source Current DAC

Inexpensive Power-Supply Margining Made Easy

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Status Explanations for product status codes

Active: In Production.

Description

The DS4432 contains two 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.
 

Data Sheet

Download this datasheet in PDF formatDownload Rev 0 (PDF, 216kB)
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Key Features

  • Two 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
  • Low Cost
  • Small Package (8-Pin µSOP)
  • -40°C to +85°C Temperature Range
  • 2.7V to 5.5V Operating Range
 

Applications/Uses

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

Key Specifications:

Precision DACs (4-12 Bits)
Part Number Resolution
(bits)
Channels Output Type Reference INL
(±LSB)
Interface Supply Range
(V)
Supply Range
(V)
Oper. Temp.
(°C)
Budgetary Price
max min max See Notes
DS4432  7 2 Current- Buffered Ext. 1 Serial - I2C 2.7 5.5 -40 to +85 $0.54 @1k
See All Precision DACs (4-12 Bits) (267)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


Diagram

DS4432: Typical Operating Circuit
Typical Operating Circuit

Notes and Comments

The DS4432 is pin compatible with the DS4412 with a lower full-scale current and higher resolution for finer power supply margining and adjustment.

More Information

New Product Press Release 2009-07-08 ]

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Information Index

Rev 0; 2009-01-29
This page last modified: 2009-01-29




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