AD5821: 120 mA, Current Sinking, 10-Bit, I²C® DAC

AD5821 Data Sheet Rev 0, 02/2007 (pdf 500kB)

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Model	Package	Price* (100-499)	Price* 1000 pcs
AD5821-WAFER Status: Contact ADI	CHIPS OR DIE	-	-

The AD5821 is a single 10-bit digital-to-analog converter with 120 mA output current sink capability. It features an internal reference and operates from a single 2.7 V to 5.5 V supply. The DAC is controlled via a 2-wire (I²C-compatible) serial interface that operates at clock rates up to 400 kHz.

The AD5821 incorporates a power-on reset circuit that ensures that the DAC output powers up to 0 V and remains there until a valid write takes place. It has a power-down feature that reduces the current consumption of the device to 1 µA maximum.

The AD5821 is designed for autofocus, image stabilization, and optical zoom applications in camera phones, digital still cameras, and camcorders.

The AD5821 also has many industrial applications, such as controlling temperature, light, and movement, over the range of −40°C to +85°C without derating.

The I²C address for the AD5821 is 0x18.

Consumer Applications

Lens autofocus
Image stabilization
Optical zoom
Shutters
Iris/exposure
Neutral density (ND) filters
Lens covers
Camera phones
Digital still cameras
Camera modules
Digital video cameras/camcorders
Camera-enabled devices
Security cameras
Web/PC cameras

Industrial Applications

Heater controls
Fan controls
Cooler (Peltier) controls
Solenoid controls
Valve controls
Linear actuator controls
Light controls
Current loop controls

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FEATURES and BENEFITS

120 mA current sink
Available in 3 × 3 array WLCSP package
2-wire (I²C-compatible) 1.8 V serial interface
10-bit resolution
Integrated current sense resistor
2.7 V to 5.5 V power supply

Guaranteed monotonic over all codes
Power-down to 0.5 µA typical
Internal reference
Ultralow noise preamplifier
Power-down function
Power-on reset

Functional Block Diagram for AD5821

Typical Applications and Other Diagrams

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Documentation

Title	Content Type	File Type
AD5821: 120 mA, Current Sinking, 10-Bit, I²C DAC Data Sheet (Rev 0, 02/2007) (pdf, 500 kB)	Data Sheets	PDF
AN-912: Driving a Center-Tapped Transformer with a Balanced Current-Output DAC (pdf, 246 kB)	Application Notes	PDF
Digital to Analog Converters ICs Solutions Bulletin (pdf)	Solutions Bulletins	PDF
We measure portable performance in µA and MHz. In handheld designs, analog is everywhere.	Overview	HTML
ICs for Enhanced Handset User Experience	Overview	HTML
RAQs index	Rarely Asked Questions	HTML
Glossary of EE Terms	Glossary	HTML

Design Tools,Models,Drivers & Software

Title	Content Type	File Type
AD5398 Regulator Current Sink DAC Linux Driver	Device Drivers	HTML

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AD5821 Model Options

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Model	Package	Pins	Temp. Range	Packing, Qty	Price*(100-499)	Price*1000 pcs	RoHS	View PCN/ PDN	Check Inventory/ Purchase/Sample
AD5821-WAFER Status: Contact ADI	CHIPS OR DIE	0	Comm.	1	-	-	Y Material Info	PCN	Purchase

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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

AD5821 Evaluation Board

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Model	Description	Price	RoHS	View PCN/ PDN	Check Inventory/ Purchase/Sample
EVAL-AD5821EBZ Status: Contact ADI	Evaluation Board	-	Yes	-	Contact ADI

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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AD5821: 120 mA, Current Sinking, 10-Bit, I²C® DAC