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.

DS4422, DS4424: Typical Operating Circuit

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Key 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

Applications/Uses

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

Parametric Specs

Part Number

Resolution
(bits)

Channels

Output Type

Reference

INL
(±LSB)

Interface

Supply Range
(V)

I_CC
(mA)

Package/Pins

Oper. Temp.
(°C)

Budgetary
Price

max

min

max

See Notes

DS4422

Current- Buffered

Ext.

Serial - I²C

2.7

5.5

0.25

TDFN/14

-40 to +85

$0.74 @1k

DS4424

TDFN/14

$0.75 @1

See All Precision DACs (251)

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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Design Resources

DS4424EVKIT: Evaluation Kit for the DS4422 and DS4424

Quality And Environmental

Device	Fab Process	Technology	Sample size	Rejects	FIT at 25°C	FIT at 55°C

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >