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AD8403ARU50-REEL

更新时间： 2024-01-08 14:57:10
品牌 Logo 应用领域
亚德诺 - ADI 光电二极管转换器电阻器
页数 文件大小 规格书
20页 431K
描述
IC QUAD 50K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO24, 1.10 MM, MO-153AD, TSSOP-24, Digital Potentiometer

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AD8403ARU50-REEL 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：TSSOP包装说明：1.10 MM, MO-153AD, TSSOP-24
针数：24Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.17其他特性：IT CAN ALSO OPERATE FROM A 5V NOMINAL SUPPLY
标称带宽：0.125 kHz控制接口：3-WIRE SERIAL
转换器类型：DIGITAL POTENTIOMETERJESD-30 代码：R-PDSO-G24
JESD-609代码：e0长度：7.8 mm
功能数量：4位置数：256
端子数量：24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：TSSOP24,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：NOT SPECIFIED电源：3/5 V
认证状态：Not Qualified电阻定律：LINEAR
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：1.2 mm子类别：Digital Potentiometers
标称供电电压：3 V表面贴装：YES
技术：CMOS标称温度系数：500 ppm/ °C
温度等级：AUTOMOTIVE端子面层：Tin/Lead (Sn85Pb15)
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
标称总电阻：50000 Ω宽度：4.4 mm
Base Number Matches：1

AD8403ARU50-REEL 数据手册

 浏览型号AD8403ARU50-REEL的Datasheet PDF文件第2页浏览型号AD8403ARU50-REEL的Datasheet PDF文件第3页浏览型号AD8403ARU50-REEL的Datasheet PDF文件第4页浏览型号AD8403ARU50-REEL的Datasheet PDF文件第5页浏览型号AD8403ARU50-REEL的Datasheet PDF文件第6页浏览型号AD8403ARU50-REEL的Datasheet PDF文件第7页 
1-/2-/4-Channel  
Digital Potentiometers  
a
AD8400/AD8402/AD8403  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
256-Position  
RDAC1  
Replaces 1, 2, or 4 Potentiometers  
1 kꢀ, 10 kꢀ, 50 kꢀ, 100 kꢀ  
Power Shutdown—Less than 5 ꢁA  
3-Wire SPI-Compatible Serial Data Input  
10 MHz Update Data Loading Rate  
2.7 V to 5.5 V Single-Supply Operation  
Midscale Preset  
A1  
W1  
B1  
AGND1  
8
AD8403  
8-BIT  
V
LATCH  
DD  
DAC  
CK RS  
SELECT  
DGND  
SHDN  
1
2
RDAC2  
A2  
W2  
B2  
AGND2  
8
8
8
8-BIT  
LATCH  
3
4
A1, A0  
2
CK RS  
SHDN  
10-BIT  
SERIAL  
LATCH  
RDAC3  
APPLICATIONS  
A3  
W3  
B3  
AGND3  
8
8-BIT  
LATCH  
Mechanical Potentiometer Replacement  
Programmable Filters, Delays, Time Constants  
Volume Control, Panning  
Line Impedance Matching  
Power Supply Adjustment  
SDI  
D
CK RS  
SHDN  
CK Q  
RS  
CLK  
RDAC4  
A4  
W4  
B4  
AGND4  
8-BIT  
LATCH  
CS  
RS  
CK  
SHDN  
SHDN  
SDO  
RS  
GENERAL DESCRIPTION  
to an end-to-end open circuit condition on the A terminal and  
shorts the wiper to the B terminal, achieving a microwatt power  
shutdown state. When SHDN is returned to logic high, the  
previous latch settings put the wiper in the same resistance  
setting prior to shutdown. The digital interface is still active in  
shutdown so that code changes can be made that will produce  
new wiper positions when the device is taken out of shutdown.  
The AD8400/AD8402/AD8403 provide a single, dual or quad  
channel, 256 position digitally controlled variable resistor (VR) device.  
These devices perform the same electronic adjustment function as  
a potentiometer or variable resistor. The AD8400 contains a single  
variable resistor in the compact SO-8 package. The AD8402 contains  
two independent variable resistors in space-saving SO-14 surface-  
mount packages. The AD8403 contains four independent variable  
resistors in 24-lead PDIP, SOIC, and TSSOP packages. Each part  
contains a fixed resistor with a wiper contact that taps the fixed  
resistor value at a point determined by a digital code loaded into the  
controlling serial input register. The resistance between the wiper and  
either endpoint of the fixed resistor varies linearly with respect to the  
digital code transferred into the VR latch. Each variable resistor  
offers a completely programmable value of resistance, between the A  
terminal and the wiper or the B terminal and the wiper. The fixed  
A to B terminal resistance of 1 kΩ, 10 kΩ, 50 kΩ, or 100 kΩ has a 1%  
channel-to-channel matching tolerance with a nominal temperature  
coefficient of 500 ppm/°C. A unique switching circuit minimizes the  
high glitch inherent in traditional switched resistor designs avoiding  
any make-before-break or break-before-make operation.  
The AD8400 is available in both the SO-8 surface-mount and the  
8-lead plastic DIP package.  
The AD8402 is available in both surface mount (SO-14) and  
14-lead plastic DIP packages, while the AD8403 is available in a  
narrow body 24-lead plastic DIP and a 24-lead surface-mount  
package. The AD8402/AD8403 are also offered in the 1.1 mm thin  
TSSOP-14/TSSOP-24 packages for PCMCIA applications. All  
parts are guaranteed to operate over the extended industrial tem-  
perature range of –40°C to +125°C.  
100  
R
R
WB  
WA  
Each VR has its own VR latch that holds its programmed resistance  
value. These VR latches are updated from an SPI compatible serial-  
to-parallel shift register that is loaded from a standard 3-wire  
serial-input digital interface. Ten data bits make up the data word  
clocked into the serial input register. The data word is decoded where  
the first two bits determine the address of the VR latch to be loaded,  
the last eight bits are data. A serial data output pin at the opposite end  
of the serial register allows simple daisy-chaining in multiple VR  
applications without additional external decoding logic.  
75  
50  
25  
0
The reset (RS) pin forces the wiper to the midscale position by  
loading 80H into the VR latch. The SHDN pin forces the resistor  
0
64  
128  
192  
255  
CODE – Decimal  
REV. C  
Figure 1. RWA and RWB vs. Code  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat  
may result from its use. No license is granted by implication or otherwise  
under any patent or patent rights of Analog Devices.  
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  
© Analog Devices, Inc., 2002  
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