256抽头的数字电位器,10kΩ,I2C总线
Low Noise, Low Power, I2C Bus, 256 Taps
The ISL22343 integrates four digitally controlled potentiometers DCP, control logic and non-volatile memory on a monolithic CMOS integrated circuit.
The digitally controlled potentiometer is implemented with a combination of resistor elements and CMOS switches. The position of the wipers are controlled by the user through the I2C bus interface. The potentiometer has an associated volatile Wiper Register WRi and a non-volatile Initial Value Register IVRi that can be directly written to and read by the user. The contents of the WRi control the position of the corresponding wiper. At power up the device recalls the contents of the DCP’s IVRi to the correspondent WRi.
Features
• Four potentiometers in one package
• 256 resistor taps
• I2C serial interface
- Three address pins, up to eight devices per bus
• Non-volatile EEPROM storage of wiper position
• 11 General Purpose non-volatile registers
• High reliability
- Endurance: 1,000,000 data changes per bit per register
- Register data retention: 50 years @ T 55°C
• Wiper resistance: 70 typical @ 1mA
• Standby current <4µA max
• Shutdown current <4µA max
• Dual power supply
- VCC = 2.25V to 5.5V
- V- = -2.25V to -5.5V
• 10k, 50k or 100k total resistance
• Extended industrial temperature range: -40°C to +125°C
• 20 Ld TSSOP or 20 Ld QFN
• Pb-free RoHS compliant
电源电压DC 2.25V min
容差 ±20 %
电路数 4
针脚数 256
电阻 10 kΩ
阻值偏差 ±20 %
工作温度Max 125 ℃
工作温度Min -40 ℃
电源电压 2.25V ~ 5.5V
电源电压Max 5.5 V
电源电压Min 2.25 V
安装方式 Surface Mount
引脚数 20
封装 TSSOP-20
长度 6.6 mm
宽度 4.5 mm
高度 1.05 mm
封装 TSSOP-20
工作温度 -40℃ ~ 125℃
温度系数 ±85 ppm/℃
产品生命周期 Active
包装方式 Tube
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 |
---|---|---|
ISL22343WFV20Z Intersil 英特矽尔 | 当前型号 | 当前型号 |
ISL22343WFV20Z-TK 英特矽尔 | 完全替代 | ISL22343WFV20Z和ISL22343WFV20Z-TK的区别 |