ISL22346集成电路（IC）的数字电位计规格书PDF中文资料

Low Noise, Low Power I2C™ Bus, 128 Taps

The ISL22346 integrates four digitally controlled potentiometers (DCP) and non-volatile memory on a monolithic CMOS integrated circuit.

特性 Features

• Four potentiometers in one package

• 128 resistor taps

• I2C serial interface

- Three address pins, up to eight devices/bus

• Non-volatile storage of wiper position

• Wiper resistance: 70Ω typical @ VCC = 3.3V

• Shutdown mode

• Shutdown current 5µA max

• Power supply: 2.7V to 5.5V

• 50kΩ or 10kΩ total resistance

• High reliability

- Endurance: 1,000,000 data changes per bit per register

- Register data retention: 50 years @ T < +55°C

• 20 Ld TSSOP or 20 Ld TQFN package

• Pb-free (RoHS compliant)