ANALOG DEVICES AD5228BUJZ50-RL7 易失性数字电位器, 50 kohm, 单, 上、下, 线性, ± 20%, 2.7 V
Product Details
The AD5228 is Analog Devices’ latest 32-step-up/step-down control digital potentiometer emulating mechanical potenti-ometer operation1. Its simple up/down control interface allows manual control with just two external pushbutton tactile switches. The AD5228 is designed with a built-in adaptive debouncer that ignores invalid bounces due to contact bounce commonly found in mechanical switches. The debouncer is adaptive, accommodating a variety of pushbutton tactile switches that generally have less than 10 ms of bounce time during contact closures. When choosing the switch, the user should consult the timing specification of the switch to ensure its suitability in an AD5228 application.
The AD5228 can increment or decrement the resistance in discrete steps or in autoscan mode. When the PU or PD button is pressed briefly no longer than 0.6 s, the resistance of the AD5228 changes by one step. When the PU or PD button is held continuously for more than a second, the device activates the autoscan mode and changes four resistance steps per second.
The AD5228 can also be controlled digitally; its up/down features simplify microcontroller usage. The AD5228 is available in a compact thin SOT-23-8 TSOT-8 package. The part is guaranteed to operate over the automotive temperature range of −40°C to +105°C.
The AD5228’s simple interface, small footprint, and very low cost enable it to replace mechanical potentiometers and trimmers with typically 3× improved resolution, solid-state reliability, and faster adjustment, resulting in considerable cost saving in end users’ systems.
Users who consider EEMEM potentiometers should refer to the recommendations in the Applications section.
**Applications**
* Mechanical potentiometer and trimmer replacements
* LCD backlight, contrast, and brightness controls
* Digital volume control
* Portable device-level adjustments
* Electronic front panel-level controls
* Programmable power supply
1 The terms digital potentiometer and RDAC are used interchangeably.
### Features and Benefits
end-to-end terminal resistance
4 steps per second
5 ppm/°C
35 ppm/°C
电源电压DC 2.70V min
容差 ±20 %
供电电流 0.05 mA
电路数 1
针脚数 8
电阻 50 kΩ
阻值偏差 ±20 %
静态电流 50.0 µA
工作温度Max 105 ℃
工作温度Min -40 ℃
电源电压 2.7V ~ 5.5V
电源电压Max 5.5 V
电源电压Min 2.7 V
安装方式 Surface Mount
引脚数 8
封装 TSOT-23-8
长度 2.9 mm
宽度 1.6 mm
高度 0.87 mm
封装 TSOT-23-8
工作温度 -40℃ ~ 105℃
温度系数 ±35 ppm/℃
产品生命周期 Active
包装方式 Tape & Reel TR
RoHS标准 RoHS Compliant
含铅标准 Lead Free
REACH SVHC标准 No SVHC
REACH SVHC版本 2015/12/17
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
AD5228BUJZ50-RL7 ADI 亚德诺 | 当前型号 | 当前型号 |
AD5228BUJZ10-RL7 亚德诺 | 类似代替 | AD5228BUJZ50-RL7和AD5228BUJZ10-RL7的区别 |
AD5228BUJZ100-RL7 亚德诺 | 类似代替 | AD5228BUJZ50-RL7和AD5228BUJZ100-RL7的区别 |
AD5228BUJZ10-R2 亚德诺 | 类似代替 | AD5228BUJZ50-RL7和AD5228BUJZ10-R2的区别 |