Datasheet > EVAL-AD5398EB

EVAL-AD5398EB

更新时间： 2024-11-27 05:20:43

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
16页	337K
描述
120 mA, Current Sinking, 10-Bit, I2C DAC

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EVAL-AD5398EB 数据手册

120 mA, Current Sinking, 10-Bit, I²C DAC

AD5398

FEATURES

FUNCTIONAL BLOCK DIAGRAM

120 mA current sink

Available in 8-lead LFCSP package

2-wire (I²C®-compatible) serial interface

10-bit resolution

POWER-ON

REFERENCE

RESET

AD5398

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

SDA

SCL

10-BIT

I C SERIAL

SINK

CURRENT

INTERFACE

OUTPUT DAC

SENSE

3.3Ω

DGND

AGND

Figure 1.

CONSUMER APPLICATIONS

Lens autofocus

Image stabilization

Optical zoom

Shutters

Iris/exposure

Neutral density filter NDFs

Lens covers

Camera phones

Digital still cameras

Camera modules

Digital video cameras (DVCs)/camcorders

Camera-enabled devices

Security cameras

GENERAL DESCRIPTION

The AD5398 is a single 10-bit DAC 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 AD5398 incorporates a power-on reset circuit, which

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 max.

Web/PC cameras

The AD5398 is designed for autofocus, image stabilization,

and optical zoom applications in camera phones, digital still

cameras, and camcorders.

INDUSTRIAL APPLICATIONS

Heater control

Fan control

Cooler (Peltier) control

Solenoid control

The AD5398 also has many industrial applications, such as

controlling temperature, light, and movement, over the range

Valve control

−40°C to +85°C without derating.

Linear actuator control

Light control

Current loop control

The I²C address range for the AD5398 is 0x18 to 0x1F

inclusive.

Rev. A

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

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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