Datasheet > AD5171BRJZ5-R7

AD5171BRJZ5-R7

更新时间： 2024-09-18 01:08:03

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
24页	996K
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64-Position OTP Digital Potentiometer

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AD5171BRJZ5-R7 数据手册

64-Position OTP Digital Potentiometer

AD5171

FUNCTIONAL BLOCK DIAGRAM

FEATURES

64 position

SCL

One-time programmable (OTP) set-and-forget resistance

setting—low cost alternative over EEMEM

Unlimited adjustments prior to OTP activation

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

Low temperature coefficient: 5 ppm/°C in potentiometer mode

Low temperature coefficient: 35 ppm/°C in rheostat mode

Compact standard 8-lead SOT-23 package

Low power: I_DD= 10 μA maximum

I C INTERFACE

SDA

AD0

AND

CONTROL LOGIC

WIPER

GND

FUSE

LINK

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

I²C-compatible digital interface

AD5171

Computer software replaces microcontroller in factory

programming applications

Figure 1.

Full read/write of wiper register

Extra I²C device address pin

AD5171

TOP VIEW

Low operating voltage: 2.7 V to 5.5 V

OTP validation check function

GND

SCL

AD0

SDA

(Not to Scale)

Automotive temperature range: −40°C to +125°C

Figure 2. Pin Configuration

When this permanent setting is achieved, the value does not

change regardless of supply variations or environmental stresses

under normal operating conditions. To verify the success of

permanent programming, Analog Devices, Inc., patterned the

OTP validation such that the fuse status can be discerned from

two validation bits in read mode.

APPLICATIONS

System calibrations

Electronics level settings

Mechanical trimmers and potentiometer replacements

Automotive electronics adjustments

Gain control and offset adjustments

Transducer circuit adjustments

For applications that program the AD5171 in factories, Analog

Devices offers device programming software that operates

across Windows® 95 to XP platforms, including Windows NT.

This software application effectively replaces the need for external

I²C controllers or host processors and, therefore, significantly

reduces the development time of the users.

Programmable filters up to 1.5 MHz BW¹

GENERAL DESCRIPTION

The AD5171 is a 64-position, one-time programmable (OTP)

digital potentiometer²that uses fuse link technology to achieve

the memory retention of the resistance setting function. OTP is

a cost-effective alternative over the EEMEM approach for users

who do not need to reprogram new memory settings in the

digital potentiometer. This device performs the same electronic

adjustment function as most mechanical trimmers and variable

resistors. The AD5171 is programmed using a 2-wire, I²C®-

compatible digital control. It allows unlimited adjustments

before permanently setting the resistance value. During the

OTP activation, a permanent fuse blown command is sent after the

final value is determined, freezing the wiper position at a given

setting (analogous to placing epoxy on a mechanical trimmer).

An AD5171 evaluation kit includes the software, connector, and

cable that can be converted for factory programming applications.

The AD5171 is available in a compact 8-lead SOT-23 package.

All parts are guaranteed to operate over the automotive temper-

ature range of −40°C to +125°C. Besides its unique OTP feature,

the AD5171 lends itself well to other general-purpose digital

potentiometer applications due to its temperature performance,

small form factor, and low cost.

¹Applies to 5 kΩ parts only.

²The terms digital potentiometer and RDAC are used interchangeably.

Rev. D

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 registeredtrademarks arethe 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

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AD5171BRJZ5-R7 替代型号

型号	品牌	替代类型	描述	数据表
AD5171BRJ5-RL7	ADI	完全替代	64-Position OTP Digital Potentiometer
AD5171BRJZ5-R2	ADI	类似代替	64 Position OTP Digital Potentiometer
AD5171BRJ5-R2	ADI	功能相似	64-Position OTP Digital Potentiometer

与AD5171BRJZ5-R7相关器件

型号	品牌	获取价格	描述	数据表
AD5171EVAL	ADI	获取价格	64-Position OTP Digital Potentiometer
AD5172	ADI	获取价格	256-Position One-Time Programmable Dual-Channel I2C Digital Potentiometers
AD5172BRM10	ADI	获取价格	256-Position One-Time Programmable Dual-Channel I2C Digital Potentiometers
AD5172BRM100	ADI	获取价格	256-Position One-Time Programmable Dual-Channel I2C Digital Potentiometers
AD5172BRM100-R2	ADI	获取价格	IC DUAL 100K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO10
AD5172BRM100-RL7	ADI	获取价格	256-Position One-Time Programmable Dual-Channel I2C Digital Potentiometers
AD5172BRM10-R2	ADI	获取价格	IC DUAL 10K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO10,
AD5172BRM10-RL7	ADI	获取价格	256-Position One-Time Programmable Dual-Channel I2C Digital Potentiometers
AD5172BRM2.5	ADI	获取价格	256-Position One-Time Programmable Dual-Channel I2C Digital Potentiometers
AD5172BRM2.5-RL7	ADI	获取价格	256-Position One-Time Programmable Dual-Channel I2C Digital Potentiometers

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