Datasheet > AD5246

AD5246

更新时间： 2024-11-08 22:47:31

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
20页	913K
描述
128-Position I2C Compatible Digital Resistor

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AD5246 数据手册

128-Position I²C Compatible

Digital Resistor

AD5246

FEATURES

128-position

FUNCTIONAL BLOCK DIAGRAM

End-to-end resistance 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ

Ultracompact SC70-6 (2 mm × 2.1 mm) package

I²C® compatible interface

Full read/write of wiper register

Power-on preset to midscale

Single supply 2.7 V to 5.5 V

Low temperature coefficient 45 ppm/°C

Low power, I_DD= 3 µA typical

Wide operating temperature –40°C to +125°C

Evaluation board available

SCL

SDA

I C INTERFACE

WIPER

GND

Figure 1.

APPLICATIONS

Mechanical potentiometer replacement in new designs

Transducer adjustment of pressure, temperature, position,

chemical, and optical sensors

¹Note: The terms digital potentiometer, VR, and RDAC are used

interchangeably in this document.

RF amplifier biasing

Automotive electronics adjustment

Gain control and offset adjustment

GENERAL OVERVIEW

The AD5246 provides a compact 2 mm × 2.1 mm packaged

solution for 128-position adjustment applications. This device

performs the same electronic adjustment function as a variable

resistor. Available in four different end-to-end resistance values

(5 kΩ, 10 kΩ, 50 kΩ, 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, which can also be used to read back the present

wiper register control word. The resistance between the wiper

and either end point of the fixed resistor varies linearly with

respect to the digital code transferred into the RDAC¹latch.

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

3 µA allows for usage in portable battery-operated applications.

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 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

registered trademarks are the property of their respective companies.

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

Tel: 781.329.4700

Fax: 781.326.8703

www.analog.com

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与AD5246相关器件

型号	品牌	获取价格	描述	数据表
AD5246BKS100-R2	ROCHESTER	获取价格	100K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 128 POSITIONS, PDSO6, 2 X 2.1
AD5246BKS100-R2	ADI	获取价格	128-Position I2C Compatible Digital Resistor
AD5246BKS100-RL7	ADI	获取价格	128-Position I2C Compatible Digital Resistor
AD5246BKS100-RL7	ROCHESTER	获取价格	100K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 128 POSITIONS, PDSO6, 2 X 2.1
AD5246BKS10-R2	ADI	获取价格	128-Position I2C Compatible Digital Resistor
AD5246BKS10-R2	ROCHESTER	获取价格	10K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 128 POSITIONS, PDSO6, 2 X 2.10
AD5246BKS10-RL7	ADI	获取价格	128-Position I2C Compatible Digital Resistor
AD5246BKS50-R2	ADI	获取价格	128-Position I2C Compatible Digital Resistor
AD5246BKS50-RL7	ADI	获取价格	128-Position I2C Compatible Digital Resistor
AD5246BKS50-RL7	ROCHESTER	获取价格	50K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 128 POSITIONS, PDSO6, 2 X 2.10

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