120 mA, Current Sinking, 2 10-Bit, I C DAC AD5398A FEATURES Industrial Heater control Current sink: 120 mA 2 Fan control 2-wire, (I C-compatible) 1.8 V serial interface Cooler (Peltier) control 10-bit resolution Solenoid control Integrated current sense resistor Valve control Power supply: 2.7 V to 5.5 V Linear actuator control Guaranteed monotonic over all codes Light control Power down to: 0.5 A typical Current loop control Internal reference Ultralow noise preamplifier GENERAL DESCRIPTION Power-down function The AD5398A is a single, 10-bit digital-to-analog converter Power-on reset (DAC) with a current sink output capability of 120 mA. This Available in 3 3 array WLCSP package device features an internal reference and operates from a APPLICATIONS single 2.7 V to 5.5 V supply. The DAC is controlled via a 2 Consumer 2-wire (1.8 V, I C-compatible) serial interface that operates Lens autofocus at clock rates up to 400 kHz. Image stabilization The AD5398A incorporates a power-on reset circuit, which Optical zoom ensures the DAC output powers up to 0 V and remains there Shutters until a valid write takes place. It has a power-down feature Iris/exposure that reduces the current consumption of the device to 0.5 A Neutral density (ND) filters typically. Lens covers Camera phones The AD5398A is designed for autofocus, image stabilization, Digital still cameras and optical zoom applications in camera phones, digital still Camera modules cameras, and camcorders. The AD5398A is also suitable for Digital video cameras/camcorders many industrial applications, such as controlling temperature, Camera-enabled devices light, and movement without derating, over temperatures Security cameras 2 ranging from 30C to +85C. The I C address range for the Web/PC cameras AD5398A is 0x18 to 0x1F inclusive. FUNCTIONAL BLOCK DIAGRAM V DD POWER-ON REFERENCE RESET AD5398A V DD D1 SDA 10-BIT 2 I C SERIAL I CURRENT SINK INTERFACE OUTPUT DAC SCL R SENSE R 3.3 PD DGND DGND AGND Figure 1. Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Fax: 781.461.3113 2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 07795-001AD5398A TABLE OF CONTENTS Features .............................................................................................. 1 Pin Configuration and Function Descriptions ..............................6 Consumer Applications ................................................................... 1 Typical Performance Characteristics ..............................................7 Industrial Applications .................................................................... 1 Terminology .......................................................................................9 General Description ......................................................................... 1 Theory of Operation ...................................................................... 10 Functional Block Diagram .............................................................. 1 Serial Interface ............................................................................ 10 2 Revision History ............................................................................... 2 I C Bus Operation ...................................................................... 10 Specif icat ions ..................................................................................... 3 Data Format ................................................................................ 11 AC Specifications .......................................................................... 4 Power Supply Bypassing and Grounding ................................ 12 Timing Specifications .................................................................. 4 Applications Information .............................................................. 13 Absolute Maximum Ratings ............................................................ 5 Outline Dimensions ....................................................................... 14 ESD Caution .................................................................................. 5 Ordering Guide .......................................................................... 14 REVISION HISTORY 10/08Revision 0: Initial Version Rev. 0 Page 2 of 16