The ISL22426 integrates two digitally controlled potentiometers (DCP) and non-volatile memory on a monolithic CMOS integrated circuit.
The digitally controlled potentiometers are implemented with a combination of resistor elements and CMOS switches. The position of the wipers are controlled by the user through the SPI serial interface. Each potentiometer has an associated volatile Wiper Register (WR) and a non-volatile Initial Value Register (IVR) that can be directly written to and read by the user. The contents of the WR controls the position of the wiper. At power-up, the device recalls the contents of the DCP’s IVR to the corresponding WR.
The DCPs can be used as three-terminal potentiometers or as two-terminal variable resistors in a wide variety of applications including control, parameter adjustments, and signal processing.
| 芯片型号 | 产品状态 | 温度范围 | 封装尺寸图 | 潮湿敏感度等级MSL | 美元价格US $ |
| ISL22426UFR16Z | 量产 | Full-Range Ind | 16 Ld QFN | 1 | 1.56 |
| ISL22426UFR16Z-TK | 量产 | Full-Range Ind | 16 Ld QFN T+R | 1 | 1.56 |
| ISL22426UFV14Z | 量产 | Full-Range Ind | 14 Ld TSSOP | 1 | 1.56 |
| ISL22426UFV14Z-TK | 量产 | Full-Range Ind | 14 Ld TSSOP T+R | 1 | 1.56 |
| ISL22426WFR16Z | 量产 | Full-Range Ind | 16 Ld QFN | 1 | 1.56 |
| ISL22426WFR16Z-TK | 量产 | Full-Range Ind | 16 Ld QFN T+R | 1 | 1.56 |
| ISL22426WFV14Z | 量产 | Full-Range Ind | 14 Ld TSSOP | 1 | 1.56 |
| ISL22426WFV14Z-TK | 量产 | Full-Range Ind | 14 Ld TSSOP T+R | 1 | 1.56 |