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AD5232BRUZ50-REEL7 PDF预览

AD5232BRUZ50-REEL7

更新时间: 2024-01-21 07:10:16
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 867K
描述
Nonvolatile Memory,Dual 256-Position Digital Potentiometer

AD5232BRUZ50-REEL7 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:TSSOP
包装说明:TSSOP,针数:16
Reach Compliance Code:unknown风险等级:5.78
Is Samacsys:N其他特性:NONVOLATILE MEMORY
标称带宽:0.6 kHz控制接口:3-WIRE SERIAL
转换器类型:DIGITAL POTENTIOMETERJESD-30 代码:R-PDSO-G16
JESD-609代码:e3长度:5 mm
湿度敏感等级:1标称负供电电压:-2.5 V
功能数量:2位置数:256
端子数量:16最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):260
认证状态:COMMERCIAL电阻定律:LINEAR/LOGARITHMIC
最大电阻容差:20%最大电阻器端电压:2.75 V
最小电阻器端电压:-2.25 V座面最大高度:1.2 mm
标称供电电压:2.5 V表面贴装:YES
标称温度系数:600 ppm/ °C温度等级:INDUSTRIAL
端子面层:MATTE TIN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 mmBase Number Matches:1

AD5232BRUZ50-REEL7 数据手册

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Nonvolatile Memory,  
Dual 256-Position Digital Potentiometer  
Data Sheet  
AD5232  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
V
DD  
Dual-channel, 256-position resolution  
10 kΩ, 50 kΩ, and 100 kΩ nominal terminal resistance  
Nonvolatile memory maintenance of wiper settings  
Predefined linear increment/decrement instructions  
Predefined 6 dB step log taper increment/decrement  
instructions  
AD5232  
ADDR  
DECODE  
CS  
CLK  
SDI  
RDAC1  
REGISTER  
A1  
SERIAL  
INTERFACE  
W1  
B1  
SDO  
EEMEM1  
RDAC1  
SPI-compatible serial interface  
Wiper settings and EEMEM readback  
3 V to 5 V single-supply operation  
RDAC2  
REGISTER  
POWER-ON  
RESET  
PR  
A2  
2.5 V dual-supply operation  
W2  
WP  
14 bytes of general-purpose user EEMEM  
Permanent memory write protection  
100-year typical data retention (TA = 55°C)  
B2  
EEMEM  
CONTROL  
EEMEM2  
RDAC2  
RDY  
14 BYTES  
USER  
EEMEM  
APPLICATIONS  
Mechanical potentiometer replacement  
Instrumentation: gain and offset adjustment  
Programmable voltage-to-current conversion  
Programmable filters, delays, and time constants  
Programmable power supply  
GND  
V
SS  
Figure 1.  
Low resolution DAC replacement  
Sensor calibration  
GENERAL DESCRIPTION  
The AD5232 device provides a nonvolatile, dual-channel,  
digitally controlled variable resistor (VR) with 256-position  
resolution. This device performs the same electronic adjustment  
function as a mechanical potentiometer with enhanced resolution,  
solid state reliability, and superior low temperature coefficient  
performance. The versatile programming of the AD5232, per-  
ormed via a microcontroller, allows multiple modes of operation  
and adjustment.  
All internal register contents can be read via the serial data  
output (SDO). This includes the RDAC1 and RDAC2 registers,  
the corresponding nonvolatile EEMEM1 and EEMEM2 registers,  
and the 14 spare USER EEMEM registers that are available for  
constant storage.  
The basic mode of adjustment is the increment and decrement  
command instructions that control the wiper position setting  
register (RDACx). An internal scratch pad RDACx register can  
be moved up or down one step of the nominal resistance between  
Terminal A and Terminal B. This step adjustment linearly changes  
the wiper to Terminal B resistance (RWB) by one position segment  
of the device’s end-to-end resistance (RAB). For exponential/  
logarithmic changes in wiper setting, a left/right shift command  
instruction adjusts the levels in 6 dB steps, which can be useful  
for audio and light alarm applications.  
In the direct program mode, a predetermined setting of the RDAC  
registers (RDAC1 and RDAC2) can be loaded directly from the  
microcontroller. Another important mode of operation allows  
the RDACx register to be refreshed with the setting previously  
stored in the corresponding EEMEM register (EEMEM1 and  
EEMEM2). When changes are made to the RDACx register to  
establish a new wiper position, the value of the setting can be  
saved into the EEMEMx register by executing an EEMEM save  
operation. After the settings are saved in the EEMEMx register,  
these values are automatically transferred to the RDACx register  
to set the wiper position at system power-on. Such operation is  
enabled by the internal preset strobe. The preset strobe can also  
be accessed externally.  
The AD5232 is available in a thin, 16-lead TSSOP package.  
All parts are guaranteed to operate over the extended industrial  
temperature range of −40°C to +85°C. An evaluation board, the  
EVAL-AD5232-10EBZ, is available.  
Rev. C  
Document Feedback  
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 registeredtrademarks arethe property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700 ©2001–2013 Analog Devices, Inc. All rights reserved.  
Technical Support  
www.analog.com  
 
 
 
 

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