双通道, 256位, I2C兼容数字电位器 Dual, 256-Position, I2C-Compatible Digital Potentiometers
Product Details
The AD5243 and AD5248 provide a compact 3 mm × 4.9 mm packaged solution for dual, 256-position adjustment applications. The AD5243 performs the same electronic adjustment function as a 3-terminal mechanical potentiometer, and the AD5248 performs the same adjustment function as a 2-terminal variable resistor. Available in four end-to-end resistance values 2.5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ, these low temperature coefficient devices are ideal for high accuracy and stability-variable resistance adjustments. The wiper settings are controllable through the I2C-compatible digital interface. The AD5248 has extra package address decode pins, AD0 and AD1, allowing multiple parts to share the same I2C, 2-wire bus on a PCB. The resistance between the wiper and either endpoint of the fixed resistor varies linearly with respect to the digital code transferred into the RDAC latch. The terms digital potentiometer, VR, and RDAC are used interchangeably.
Operating from a 2.7 V to 5.5 V power supply and consuming less than 6 µA allows the AD5243/AD5248 to be used in portable battery-operated applications.
For applications that program the AD5243/AD5248 at the factory, Analog Devices, Inc., offers device programming software running on Windows® NT/2000/XP operating systems. This software effectively replaces the need for external I2C controllers, which in turn enhances the time to market of systems. An AD5243/AD5248 evaluation kit and software are available. The kit includes a cable and instruction manual.
Applications
### Features and Benefits
供电电流 0.0035 mA
电路数 2
针脚数 256
时钟频率 400kHz max
电阻 10 kΩ
阻值偏差 ±20 %
静态电流 3.50 µA
工作温度Max 125 ℃
工作温度Min -40 ℃
电源电压 2.7V ~ 5.5V
安装方式 Surface Mount
引脚数 10
封装 MSOP-10
高度 0.85 mm
封装 MSOP-10
工作温度 -40℃ ~ 125℃
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
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
AD5243BRMZ10-RL7 ADI 亚德诺 | 当前型号 | 当前型号 |
AD5243BRM10 亚德诺 | 完全替代 | AD5243BRMZ10-RL7和AD5243BRM10的区别 |
AD5243BRM10-RL7 亚德诺 | 完全替代 | AD5243BRMZ10-RL7和AD5243BRM10-RL7的区别 |
AD5243BRMZ10 亚德诺 | 类似代替 | AD5243BRMZ10-RL7和AD5243BRMZ10的区别 |