Datasheet > AD5172BRM100

AD5172BRM100

更新时间： 2024-11-08 22:03:55

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	1150K
描述
256-Position One-Time Programmable Dual-Channel I2C Digital Potentiometers

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AD5172BRM100 数据手册

256-Position One-Time Programmable

Dual-Channel I²C Digital Potentiometers

AD5172/AD5173

FUNCTIONAL BLOCK DIAGRAMS

FEATURES

2-channel, 256-position

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

setting, low cost alternative to EEMEM

Unlimited adjustments prior to OTP activation

OTP overwrite allows dynamic adjustments with user

defined preset

End-to-end resistance: 2.5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ

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

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

Full read/write of wiper register

FUSE

LINKS

RDAC

GND

Power-on preset to midscale

Extra package address decode pins AD0 and AD1 (AD5173)

Single supply 2.7 V to 5.5 V

SDA

SCL

SERIAL INPUT

Low temperature coefficient: 35 ppm/°C

Low power, I_DD= 6 µA max

Figure 1. AD5172

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

Evaluation board and software are available

Software replaces µC in factory programming applications

APPLICATIONS

Systems calibration

Electronics level setting

FUSE

LINKS

Mechanical Trimmers® replacement in new designs

Permanent factory PCB setting

Transducer adjustment of pressure, temperature, position,

chemical, and optical sensors

RF amplifier biasing

RDAC

GND

AD0

AD1

ADDRESS

DECODE

Automotive electronics adjustment

Gain control and offset adjustment

SDA

SCL

SERIAL INPUT

GENERAL OVERVIEW

Figure 2. AD5173

The AD5172/AD5173 are dual channel, 256-position, one-time

programmable (OTP) digital potentiometers¹that employ fuse

link technology to achieve memory retention of resistance

setting. OTP is a cost-effective alternative to EEMEM for users

who do not need to program the digital potentiometer setting in

memory more than once. This device performs the same elec-

tronic adjustment function as mechanical potentiometers or

variable resistors with enhanced resolution, solid-state reliabil-

ity, and superior low temperature coefficient performance.

Unlike traditional OTP digital potentiometers, the AD5172/

AD5173 have a unique temporary OTP overwrite feature that

allows for new adjustments even after the fuse has been blown.

However, the OTP setting is restored during subsequent power-

up conditions. This feature allows users to treat these digital

potentiometers as volatile potentiometers with a programmable

preset.

For applications that program the AD5172/AD5173 at the

factory, Analog Devices offers device programming software

running on Windows® NT®, 2000, and XP® operating systems.

This software effectively replaces any external I²C controllers,

thus enhancing the time-to-market of the user’s systems.

The AD5172/AD5173 are programmed using a 2-wire, I²C

compatible digital interface. Unlimited adjustments are allowed

before permanently setting the resistance value. During OTP

activation, a permanent blow fuse command freezes the wiper

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

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

Rev. A

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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AD5172BRM100 替代型号

型号	品牌	替代类型	描述	数据表
AD5172BRM100-RL7	ADI	完全替代	256-Position One-Time Programmable Dual-Channel I2C Digital Potentiometers
AD5172BRMZ100	ADI	类似代替	256-Position, One-Time Programmable, Dual Channel, I<sup>2</sup>C Digital Pote

与AD5172BRM100相关器件

型号	品牌	获取价格	描述	数据表
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
AD5172BRM50	ADI	获取价格	256-Position One-Time Programmable Dual-Channel I2C Digital Potentiometers
AD5172BRM50-R2	ADI	获取价格	IC DUAL 50K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO10,
AD5172BRM50-RL7	ADI	获取价格	256-Position One-Time Programmable Dual-Channel I2C Digital Potentiometers
AD5172BRMZ10	ADI	获取价格	256-Position, One-Time Programmable, Dual Channel, I<sup>2</sup>C Digital Pote

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