Datasheet > AD5243BRMZ2.5-RL7

AD5243BRMZ2.5-RL7

更新时间： 2024-11-19 12:32:55

品牌	Logo	应用领域
亚德诺 - ADI		电位器
页数	文件大小	规格书
20页	803K
描述
Dual, 256-Position, I2C-Compatible Digital Potentiometers

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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

Power-on preset to midscale

WIPER

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

Computer software replaces microcontroller in factory

programming applications

GND

AD5243

Single supply: 2.7 V to 5.5 V

Low temperature coefficient: 35 ppm/°C

Low power: I_DD= 6 µA maximum

SDA

SCL

PC INTERFACE

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

Evaluation board available

Figure 1. AD5243

APPLICATIONS

Systems calibrations

Electronics level settings

Mechanical trimmers replacement in new designs

Permanent factory PCB setting

Transducer adjustment of pressure, temperature, position,

chemical, and optical sensors

RDAC

GND

RF amplifier biasing

Automotive electronics adjustment

Gain control and offset adjustment

AD0

AD1

ADDRESS

DECODE

AD5248

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.¹

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/AD5258 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.

¹The terms digital potentiometer, VR, and RDAC are used interchangeably.

Rev. B

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.

Tel: 781.329.4700

www.analog.com

12 3 4 5 6 7...20

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AD5243BRMZ2.5-RL7 替代型号

型号	品牌	替代类型	描述	数据表
AD5243BRMZ2.5	ADI	完全替代	Dual, 256-Position, I2C-Compatible Digital Potentiometers
AD5243BRM2.5	ADI	完全替代	Dual 256-Position I2C Compatible Digital Potentiometer
AD5243BRMZ10	ADI	类似代替	Dual, 256-Position, I2C-Compatible Digital Potentiometers

与AD5243BRMZ2.5-RL7相关器件

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AD5243BRMZ50	ADI	获取价格	Dual, 256-Position, I2C-Compatible Digital Potentiometers
AD5243BRMZ50-RL7	ADI	获取价格	Dual, 256-Position, I2C-Compatible Digital Potentiometers
AD5243EVAL	ADI	获取价格	Dual 256-Position I2C Compatible Digital Potentiometer
AD5245	ADI	获取价格	256-Position I2C Compatible Digital Potentiometer
AD5245BRJ10	ADI	获取价格	256-Position I2C-Compatible Digital Potentiometer
AD5245BRJ100	ADI	获取价格	IC 100K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO8, 2.90
AD5245BRJ100-R2	ADI	获取价格	256-Position I2C Compatible Digital Potentiometer
AD5245BRJ100-RL7	ADI	获取价格	256-Position I2C Compatible Digital Potentiometer
AD5245BRJ10-R2	ADI	获取价格	256-Position I2C Compatible Digital Potentiometer
AD5245BRJ10-RL7	ADI	获取价格	256-Position I2C Compatible Digital Potentiometer

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