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.

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 @ 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
• Pb-free plus anneal product (RoHS compliant)