AD5170BRM10

更新时间： 2024-01-29 07:21:34

品牌	Logo	应用领域
亚德诺 - ADI		转换器数字电位计电阻器光电二极管
页数	文件大小	规格书
24页	1077K
描述
256-Position Two-Time Programmable I2C Digital Potentiometer

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AD5170BRM10 技术参数

Source Url Status Check Date：	2013-05-01 14:56:10.389	是否无铅：	含铅
是否Rohs认证：	不符合	生命周期：	Obsolete
零件包装代码：	TSSOP	包装说明：	3 X 4.90 MM, MO-187BA, MSOP-10
针数：	10	Reach Compliance Code：	not_compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.38	其他特性：	IT CAN ALSO OPERATE FROM A 5V NOMINAL SUPPLY
标称带宽：	0.6 kHz	控制接口：	2-WIRE SERIAL
转换器类型：	DIGITAL POTENTIOMETER	JESD-30 代码：	S-PDSO-G10
JESD-609代码：	e0	长度：	3 mm
湿度敏感等级：	1	功能数量：	1
位置数：	256	端子数量：	10
最高工作温度：	125 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	TSSOP
封装等效代码：	TSSOP10,.19,20	封装形状：	SQUARE
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	240
电源：	3/5 V	认证状态：	Not Qualified
电阻定律：	LINEAR	最大电阻容差：	20%
最大电阻器端电压：	5.5 V	最小电阻器端电压：
座面最大高度：	1.1 mm	子类别：	Digital Potentiometers
标称供电电压：	3 V	表面贴装：	YES
标称温度系数：	35 ppm/ °C	温度等级：	AUTOMOTIVE
端子面层：	Tin/Lead (Sn85Pb15)	端子形式：	GULL WING
端子节距：	0.5 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	20	标称总电阻：	10000 Ω
宽度：	3 mm	Base Number Matches：	1

AD5170BRM10 数据手册

256-Position Two-Time Programmable

I²C Digital Potentiometer

AD5170

FUNCTIONAL BLOCK DIAGRAM

FEATURES

256-position

TTP (two-time programmable) set-and-forget resistance

setting allows second-chance permanent programming

Unlimited adjustments prior to OTP (one-time

programming) activation

FUSE

LINKS

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

RDAC

GND

AD0

AD1

ADDRESS

DECODE

Power-on preset to midscale

Extra package address decode pins AD0 and AD1

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 maximum

Figure 1.

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

Evaluation board and software are available

Software replaces µC in factory programming applications

APPLICATIONS

Systems calibration

The AD5170 is programmed using a 2-wire, I²C® compatible

digital interface. Unlimited adjustments are allowed before

permanently (there are actually two opportunities) setting the

resistance value. During OTP activation, a permanent blow fuse

command freezes the wiper position (analogous to placing

epoxy on a mechanical trimmer).

Electronics level setting

Mechanical Trimmers® replacement in new designs

Permanent factory PCB setting

Transducer adjustment of pressure, temperature, position,

chemical, and optical sensors

RF amplifier biasing

Automotive electronics adjustment

Gain control and offset adjustment

Unlike traditional OTP digital potentiometers, the AD5170 has

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.

GENERAL OVERVIEW

The AD5170 is a 256-position, two-time programmable (TTP)

digital potentiometer¹that employs fuse link technology to

enable two opportunities at permanently programming the

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 electronic adjustment function as mechanical

potentiometers or variable resistors with enhanced resolution,

solid-state reliability, and superior low temperature coefficient

performance.

For applications that program the AD5170 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.

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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