參數(shù)資料
型號(hào)： AD5173BRM2.5
廠商： ANALOG DEVICES INC
元件分類(lèi)： 數(shù)字電位計(jì)
英文描述： Dual, 256-Tap, Nonvolatile, I2C-Interface, Digital Potentiometers
中文描述： DUAL 2.5K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO10
封裝： 3 X 4.90 MM, MO-187BA, MSOP-10
文件頁(yè)數(shù)： 1/24頁(yè)
文件大?。?/td> 948K
代理商： AD5173BRM2.5
256-Position One-Time Programmable
Dual-Channel I
2
C Digital Potentiometers
AD5172/AD5173
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 k, 10 k, 50 k, 100 k
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
Power-on preset to midscale
Extra package address decode pins AD0 and AD1 (AD5173)
Single supply 2.7 V to 5.5 V
Low temperature coefficient: 35 ppm/°C
Low power, I
DD
= 6 μA max
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
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
GENERAL OVERVIEW
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.
Tel: 781.329.4700
www.analog.com
The AD5172/AD5173 are dual channel, 256-position, one-time
programmable (OTP) digital potentiometers
1
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.
The AD5172/AD5173 are programmed using a 2-wire, I
2
C
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).
FUNCTIONAL BLOCK DIAGRAMS
A1
V
DD
GND
SDA
SCL
W1
RDAC
REGISTER 1
SERIAL INPUT
REGISTER
0
B1
A2
W2
RDAC
REGISTER 2
B2
FUSE
LINKS
1
2
/
8
Figure 1. AD5172
V
DD
GND
SDA
SCL
AD0
AD1
W1
RDAC
REGISTER 1
ADDRESS
DECODE
SERIAL INPUT
REGISTER
B1
W2
RDAC
REGISTER 2
B2
FUSE
LINKS
1
2
/
8
0
Figure 2. AD5173
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 I
2
C controllers,
thus enhancing the time-to-market of the user’s systems.
1
The terms digital potentiometer, VR, and RDAC are used interchangeably.
相關(guān)PDF資料
PDF描述
AD5172BRM2.5 Dual, 256-Tap, Nonvolatile, I2C-Interface, Digital Potentiometers
AD5172BRM2.5-RL7 Dual, 256-Tap, Nonvolatile, I2C-Interface, Digital Potentiometers
AD5173BRM10 Dual, 256-Tap, Nonvolatile, I2C-Interface, Digital Potentiometers
AD5173BRM10-RL7 Dual, 256-Tap, Nonvolatile, I2C-Interface, Digital Potentiometers
AD5173BRM100 Dual, 256-Tap, Nonvolatile, I2C-Interface, Digital Potentiometers
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD5173BRM50 功能描述:IC DGTL POT DUAL 50K OTP 10-MSOP RoHS:否 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:DPP 接片:32 電阻（歐姆）:10k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 300 ppm/°C 存儲(chǔ)器類(lèi)型:非易失 接口:3 線串行（芯片選擇，遞增，增/減） 電源電壓:2.5 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-WFDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:8-TDFN（2x3） 包裝:帶卷 (TR)
AD5173BRM50-RL7 功能描述:IC DGTL POT DUAL 50K OTP 10-MSOP RoHS:否 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:DPP 接片:32 電阻（歐姆）:10k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 300 ppm/°C 存儲(chǔ)器類(lèi)型:非易失 接口:3 線串行（芯片選擇，遞增，增/減） 電源電壓:2.5 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-WFDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:8-TDFN（2x3） 包裝:帶卷 (TR)
AD5173BRMZ10 功能描述:IC POT DGTL DUAL 10K OTP 10MSOP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 接片:256 電阻（歐姆）:100k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 35 ppm/°C 存儲(chǔ)器類(lèi)型:非易失 接口:3 線串口 電源電壓:2.7 V ~ 5.25 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:8-TDFN-EP（3x3） 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:1399 (CN2011-ZH PDF) 其它名稱(chēng):MAX5423ETA+TCT
AD5173BRMZ100 功能描述:IC POT DGTL DUAL 100K OTP 10MSOP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:DPP 接片:32 電阻（歐姆）:10k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 300 ppm/°C 存儲(chǔ)器類(lèi)型:非易失 接口:3 線串行（芯片選擇，遞增，增/減） 電源電壓:2.5 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-WFDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:8-TDFN（2x3） 包裝:帶卷 (TR)
AD5173BRMZ1002 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:256-Position, One-Time Programmable, Dual-Channel, I2C Digital Potentiometers
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