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AD5227BUJZ50-R2 PDF预览

AD5227BUJZ50-R2

更新时间: 2024-02-22 23:41:21
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
16页 384K
描述
64-Position Up/Down Control Digital Potentiometer

AD5227BUJZ50-R2 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:TSSOP
包装说明:VSSOP, TSSOP8,.1针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:8.4
Is Samacsys:N标称带宽:0.1 kHz
控制接口:INCREMENT/DECREMENT转换器类型:DIGITAL POTENTIOMETER
JESD-30 代码:R-PDSO-G8JESD-609代码:e3
长度:2.9 mm湿度敏感等级:1
功能数量:1位置数:64
端子数量:8最高工作温度:105 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:VSSOP封装等效代码:TSSOP8,.1
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):260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 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:INDUSTRIAL端子面层:Matte Tin (Sn)
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:40
标称总电阻:50000 Ω宽度:1.6 mm
Base Number Matches:1

AD5227BUJZ50-R2 数据手册

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64-Position Up/Down  
Control Digital Potentiometer  
AD5227  
FEATURES  
64-position digital potentiometer  
FUNCTIONAL BLOCK DIAGRAM  
V
DD  
10 kΩ, 50 kΩ, 100 kΩ end-to-end terminal resistance  
Simple up/down digital or manual configurable control  
Midscale preset  
Low potentiometer mode tempco = 10 ppm/°C  
Low rheostat mode tempco = 35 ppm/°C  
Ultralow power, IDD = 0.4 μA typ and 3 μA max  
Fast adjustment time, ts = 1 μs  
Chip select enable multiple device operation  
Low operating voltage, 2.7 V to 5.5 V  
Automotive temperature range, −40°C to +105°C  
Compact thin SOT-23-8 (2.9 mm × 3 mm) Pb-free package  
AD5227  
A
CS  
6-BIT UP/DOWN  
CONTROL  
LOGIC  
U/D  
W
B
CLK  
GND  
POR  
MIDSCALE  
WIPER  
REGISTER  
Figure 1.  
APPLICATIONS  
Mechanical potentiometer and trimmer replacements  
LCD backlight, contrast, and brightness controls  
Portable electronics level adjustment  
Programmable power supply  
Digital trimmer replacements  
Automatic closed-loop control  
GENERAL DESCRIPTION  
The AD5227 is Analog Devices’ latest 64-step up/down control  
digital potentiometer1. This device performs the same electronic  
adjustment function as a 5 V potentiometer or variable resistor.  
Its simple 3-wire up/down interface allows manual switching or  
high speed digital control. The AD5227 presets to midscale at  
The AD5227 is available in a compact thin SOT-23-8 (TSOT-8)  
Pb-free package. The part is guaranteed to operate over the  
automotive temperature range of −40°C to +105°C.  
Users who consider EEMEM potentiometers should refer to  
some recommendations in the Applications section.  
power-up. When  
is enabled, the devices changes step at  
CS  
Table 1. Truth Table  
every clock pulse. The direction is determined by the state of  
CLK  
Operation1  
CS  
U/D  
D
the U/ pin (see Table 1). The interface is simple to activate by  
0
0
1
0
1
X
RWB Decrement  
RWB Increment  
No Operation  
any host controller, discrete logic, or manually with a rotary  
encoder or pushbuttons. The AD5227s 64-step resolution, small  
footprint, and simple interface enable it to replace mechanical  
potentiometers and trimmers with typically 6× improved  
resolution, solid-state reliability, and design layout flexibility,  
resulting in a considerable cost savings in end users’ systems.  
X
1 RWA increments if RWB decrements and vice versa.  
1 The terms digital potentiometer and RDAC are used interchangeably.  
Rev. B  
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  
www.analog.com  
Fax: 781.326.8703© 2004–2009 Analog Devices, Inc. All rights reserved.  
 

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