Datasheet > AD5258BRMZ100-RL7

AD5258BRMZ100-RL7

更新时间： 2024-12-01 14:33:11

品牌	Logo	应用领域
亚德诺 - ADI		光电二极管转换器电阻器
页数	文件大小	规格书
24页	533K
描述
IC 100K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 64 POSITIONS, PDSO10, LEAD FREE, MO-187-BA, MSOP-10, Digital Potentiometer

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Nonvolatile, I²C^®-Compatible

64-Position, Digital Potentiometer

Data Sheet

AD5258

FEATURES

FUNCTIONAL BLOCK DIAGRAMS

Nonvolatile memory maintains wiper settings

64-position digital potentiometer

Compact MSOP-10 (3 mm × 4.9 mm)

I²C-compatible interface

RDAC

LOGIC

GND

EEPROM

DATA

CONTROL

_LOGICpin provides increased interface flexibility

SCL

SDA

I C

End-to-end resistance 1 kΩ, 10 kΩ, 50 kΩ, 100 kΩ

Resistance tolerance stored in EEPROM (0.1% accuracy)

Power-on EEPROM refresh time <1 ms

Software write protect command

Address Decode Pin AD0 and Address Decode Pin AD1 allow

four packages per bus

SERIAL

INTERFACE

AD0

AD1

COMMAND

DECODE LOGIC

AD5258

ADDRESS

DECODE LOGIC

POWER-

ON RESET

CONTROL LOGIC

100-year typical data retention at 55°C

Wide operating temperature −40°C to +85°C

3 V to 5 V single supply

Figure 1. Block Diagram

LOGIC

APPLICATIONS

EEPROM

SCL

SDA

AD0

AD1

LCD panel V_COMadjustment

RDAC

AND

SERIAL

INTERFACE

LCD panel brightness and contrast control

Mechanical potentiometer replacement in new designs

Programmable power supplies

RF amplifier biasing

LEVEL

SHIFTER

COMMAND

DECODE LOGIC

ADDRESS

DECODE LOGIC

Automotive electronics adjustment

Gain control and offset adjustment

Fiber to the home systems

CONTROL

LOGIC

GND

Figure 2. Block Diagram Showing Level Shifters

Electronics level settings

GENERAL DESCRIPTION

The AD5258 provides a compact, nonvolatile 3 mm × 4.9 mm

packaged solution for 64-position adjustment applications. These

devices perform the same electronic adjustment function as

mechanical potentiometers¹or variable resistors, but with

enhanced resolution and solid-state reliability.

The wiper settings are controllable through an I²C-compatible

digital interface that is also used to read back the wiper register

and EEPROM content in addition, resistor tolerance is stored

within EEPROM, providing an end-to-end tolerance accuracy

of 0.1%. There is also a software write protection function that

ensures data cannot be written to the EEPROM register.

A separate V_LOGICpin delivers increased interface flexibility. For

users who need multiple parts on one bus, Address Bit AD0 and

Address Bit AD1 allow up to four devices on the same bus.

¹The terms digital potentiometer, VR (variable resistor), and RDAC are used

interchangeably.

Rev. D

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

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与AD5258BRMZ100-RL7相关器件

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AD5258BRMZ1-R71	ADI	获取价格	Nonvolatile, I2C-Compatible 64-Position, Digital Potentiometer
AD5258BRMZ1-RL7	ADI	获取价格	Nonvolatile, I2C-Compatible 64-Position, Digital Potentiometer
AD5258BRMZ50	ADI	获取价格	Nonvolatile, I2C-Compatible 64-Position, Digital Potentiometer
AD5258BRMZ501	ADI	获取价格	Nonvolatile, I2C-Compatible 64-Position, Digital Potentiometer
AD5258BRMZ50-R7	ADI	获取价格	Nonvolatile, I2C-Compatible 64-Position, Digital Potentiometer

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