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AD5172BRM10 PDF预览

AD5172BRM10

更新时间: 2024-02-25 07:26:31
品牌 Logo 应用领域
亚德诺 - ADI 转换器电位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 1150K
描述
256-Position One-Time Programmable Dual-Channel I2C Digital Potentiometers

AD5172BRM10 技术参数

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_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.37
Is Samacsys:N其他特性:IT CAN ALSO OPERATE FROM 5 V NOMINAL SUPPLY
标称带宽:0.6 kHz控制接口:2-WIRE SERIAL
转换器类型:DIGITAL POTENTIOMETERJESD-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:2
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 mmBase Number Matches:1

AD5172BRM10 数据手册

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256-Position One-Time Programmable  
Dual-Channel I2C Digital Potentiometers  
AD5172/AD5173  
FUNCTIONAL BLOCK DIAGRAMS  
FEATURES  
A1  
W1  
B1  
A2  
W2  
B2  
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: tS = 5 µs typ in power-up  
Full read/write of wiper register  
FUSE  
LINKS  
V
DD  
1
2
RDAC  
RDAC  
REGISTER 2  
GND  
REGISTER 1  
Power-on preset to midscale  
8
Extra package address decode pins AD0 and AD1 (AD5173)  
Single supply 2.7 V to 5.5 V  
SDA  
SCL  
SERIAL INPUT  
REGISTER  
Low temperature coefficient: 35 ppm/°C  
Low power, IDD = 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  
W1  
B1  
W2  
B2  
APPLICATIONS  
Systems calibration  
Electronics level setting  
FUSE  
LINKS  
V
DD  
1
2
Mechanical Trimmers® replacement in new designs  
Permanent factory PCB setting  
Transducer adjustment of pressure, temperature, position,  
chemical, and optical sensors  
RF amplifier biasing  
RDAC  
REGISTER 1  
RDAC  
REGISTER 2  
GND  
AD0  
AD1  
ADDRESS  
DECODE  
8
Automotive electronics adjustment  
Gain control and offset adjustment  
SDA  
SCL  
SERIAL INPUT  
REGISTER  
GENERAL OVERVIEW  
Figure 2. AD5173  
The AD5172/AD5173 are dual channel, 256-position, one-time  
programmable (OTP) digital potentiometers1 that 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 users 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  
© 2003 Analog Devices, Inc. All rights reserved.  

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