For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

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Maxim Integrated Products

1

General Description

grammable 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

outputs power up in a high-impedance state.

Applications

Power-Supply Adjustment

Power-Supply Margining

Adjustable Current Sink or Source

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

♦ Two Address Pins Allow Four Devices on Same

♦ Low Cost

♦ Small Package (14-Pin, 3mm x 3mm TDFN)

♦ -40°C to +85°C Temperature Range

♦ 2.7V to 5.5V Operating Range

Current DAC

DC-DC

CONVERTER

FB

OUT

SDA

SCL

A0

A1

OUT0

OUT1

GND

FS0

FS1

DC-DC

CONVERTER

FB

OUT

DS4422/

DS4424

Typical Operating Circuit

Ordering Information

Rev 0; 3/08

+

Denotes a lead-free package.

T&R = Tape and reel.

PART

OUTPUTS

TEMP RANGE

PIN-

PACKAGE

DS4422N+

2

-40°C to +85°C

14 TDFN

DS4422N+T&R

2

-40°C to +85°C

14 TDFN

DS4424N+

4

-40°C to +85°C

14 TDFN

DS4424N+T&R

4

-40°C to +85°C

14 TDFN

Pin Configuration appears at end of data sheet.