Datasheet > AD5258BRMZ50-R71

AD5258BRMZ50-R71

更新时间： 2024-11-03 22:53:27

品牌	Logo	应用领域
亚德诺 - ADI		电位器
页数	文件大小	规格书
24页	1241K
描述
Nonvolatile, I2C-Compatible 64-Position, Digital Potentiometer

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AD5258BRMZ50-R71 数据手册

Nonvolatile, I²C-Compatible

64-Position, Digital Potentiometer

AD5258

FUNCTIONAL BLOCK DIAGRAMS

FEATURES

Nonvolatile memory maintains wiper settings

64-position

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

I²C®-compatible interface

V_LOGICpin provides increased interface flexibility

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

RDAC

LOGIC

EEPROM

GND

DATA

CONTROL

SCL

SDA

I C

SERIAL

INTERFACE

AD0

AD1

COMMAND

DECODE LOGIC

AD5258

ADDRESS

DECODE LOGIC

POWER-

ON RESET

Three-state Address Decode Pins AD0 and AD1 allow

9 packages per bus

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

EEPROM

APPLICATIONS

SCL

SDA

AD0

AD1

RDAC

AND

I C

LCD panel V_COMadjustment

SERIAL

INTERFACE

LEVEL

LCD panel brightness and contrast control

Mechanical potentiometer replacement in new designs

Programmable power supplies

RF amplifier biasing

Automotive electronics adjustment

Gain control and offset adjustment

Fiber to the home systems

SHIFTER

COMMAND

DECODE LOGIC

ADDRESS

DECODE LOGIC

CONTROL

LOGIC

GND

Figure 2. Block Diagram Showing Level Shifters

Electronics level settings

GENERAL DESCRIPTION

CONNECTION DIAGRAM

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.

AD0

AD1

SDA

SCL

AD5258

TOP VIEW

(Not to Scale)

GND

LOGIC

Figure 3. Pinout

The wiper settings are controllable through an I²C-compatible

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

and EEPROM content. Resistor tolerance is also 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.

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

interchangeably.

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 nine devices on the same bus.

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 owners.

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AD5258BRMZ50-R71相关器件

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AD5258EVAL2	ADI	获取价格	Nonvolatile, I2C-Compatible 64-Position, Digital Potentiometer
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AD5259BCPZ100-R7	ADI	获取价格	Nonvolatile, I2C-Compatible 256-Position, Digital Potentiometer
AD5259BCPZ10-R7	ADI	获取价格	Nonvolatile, I2C-Compatible 256-Position, Digital Potentiometer
AD5259BCPZ50-R7	ADI	获取价格	Nonvolatile, I2C-Compatible 256-Position, Digital Potentiometer
AD5259BCPZ5-R7	ADI	获取价格	Nonvolatile, I2C-Compatible 256-Position, Digital Potentiometer
AD5259BRMZ10	ADI	获取价格	Nonvolatile, I2C-Compatible 256-Position, Digital Potentiometer
AD5259BRMZ100	ADI	获取价格	Nonvolatile, I2C-Compatible 256-Position, Digital Potentiometer
AD5259BRMZ100-R7	ADI	获取价格	Nonvolatile, I2C-Compatible 256-Position, Digital Potentiometer
AD5259BRMZ10-R7	ADI	获取价格	Nonvolatile, I2C-Compatible 256-Position, Digital Potentiometer

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