Datasheet > AD5248_16

AD5248_16

更新时间： 2024-02-22 11:39:45

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
20页	834K
描述
Dual, 256-Position, I2C-Compatible Digital Potentiometers

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

AD5248_16 数据手册

Dual, 256-Position, I²C-Compatible

Digital Potentiometers

Data Sheet

AD5243/AD5248

FEATURES

FUNCTIONAL BLOCK DIAGRAMS

2-channel, 256-position potentiometers

End-to-end resistance: 2.5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ

Compact 10-lead MSOP (3 mm × 4.9 mm) package

Fast settling time: t_S= 5 µs typical on power-up

Full read/write of wiper register

WIPER

Power-on preset to midscale

GND

Extra package address decode pins: AD0 and AD1 (AD5248 only)

Computer software replaces microcontroller in factory

programming applications

AD5243

Single supply: 2.7 V to 5.5 V

Low temperature coefficient: 35 ppm/°C

Low power: I_DD= 6 µA maximum

Wide operating temperature: −40°C to +125°C

Evaluation board available

SDA

SCL

PC INTERFACE

Figure 1. AD5243

APPLICATIONS

Systems calibrations

Electronics level settings

RDAC

Mechanical trimmers replacement in new designs

Permanent factory printed circuit board (PCB) setting

Transducer adjustment of pressure, temperature, position,

chemical, and optical sensors

GND

AD0

AD1

ADDRESS

DECODE

AD5248

RF amplifier biasing

Gain control and offset adjustment

SDA

SCL

SERIAL INPUT

Figure 2. AD5248

GENERAL DESCRIPTION

The AD5243 and AD5248 provide a compact 3 mm × 4.9 mm

packaged solution for dual, 256-position adjustment applications.

The AD5243 performs the same electronic adjustment function

as a 3-terminal mechanical potentiometer, and the AD5248

performs the same adjustment function as a 2-terminal variable

resistor. Available in four end-to-end resistance values (2.5 kΩ,

10 kΩ, 50 kΩ, and 100 kΩ), these low temperature coefficient

devices are ideal for high accuracy and stability-variable

resistance adjustments. The wiper settings are controllable

through the I²C-compatible digital interface. The AD5248 has

extra package address decode pins, AD0 and AD1, allowing

multiple parts to share the same I²C, 2-wire bus on a PCB. The

resistance between the wiper and either endpoint of the fixed

resistor varies linearly with respect to the digital code transferred

into the RDAC latch. (The terms digital potentiometer, VR,

and RDAC are used interchangeably.)

Operating from a 2.7 V to 5.5 V power supply and consuming

less than 6 µA allows the AD5243/AD5248 to be used in

portable battery-operated applications.

For applications that program the AD5243/AD5248 at the

factory, Analog Devices, Inc., offers device programming

software running on Windows® NT/2000/XP operating systems.

This software effectively replaces the need for external I²C

controllers, which in turn enhances the time to market of

systems. An AD5243/AD5248 evaluation kit and software are

available. The kit includes a cable and instruction manual.

Rev. C

Document Feedback

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

rightsof third parties that may result fromits 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 andregisteredtrademarks are the property of their respective owners.

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

Technical Support

www.analog.com

12 3 4 5 6 7...20

中文翻译

下载PDF

与AD5248_16相关器件

型号	品牌	获取价格	描述	数据表
AD5248BRM10	ADI	获取价格	Dual 256-Position I2C Compatible Digital Potentiometer
AD5248BRM100	ADI	获取价格	Dual 256-Position I2C Compatible Digital Potentiometer
AD5248BRM100-R2	ADI	获取价格	IC 100K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO10, 3 X
AD5248BRM100-RL7	ADI	获取价格	Dual 256-Position I2C Compatible Digital Potentiometer
AD5248BRM10-R2	ADI	获取价格	IC 10K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO10, 3 X
AD5248BRM10-RL7	ADI	获取价格	Dual 256-Position I2C Compatible Digital Potentiometer
AD5248BRM2.5	ADI	获取价格	Dual 256-Position I2C Compatible Digital Potentiometer
AD5248BRM2.5-R2	ADI	获取价格	IC 2.5K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO10, 3 X
AD5248BRM2.5-RL7	ADI	获取价格	Dual 256-Position I2C Compatible Digital Potentiometer
AD5248BRM50	ADI	获取价格	Dual 256-Position I2C Compatible Digital Potentiometer

产品中心

服务支持

精选活动

关于我们

帮助中心

AD5248_16

AD5248_16 数据手册

与AD5248_16相关器件

与AD5248_16相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

AD5248_16

AD5248_16 数据手册

与AD5248_16相关器件

与AD5248_16相关文章

您还可以找

您在本页遇到什么问题？