Hot-selling and scarce ISL22343WFV20Z Quad Digitally Controlled Potentiometer TSSOP20 spot stock

Product Descriptions

The ISL22343 integrates four digitally controlledpotentiometers (DCP),control logic and non-volatile memoryon a monolithic CMOS integrated circuit .

The digitally controlled potentiometer is implemented with acombination of resistor elements and CMOS switches . Theposition of the wipers are controlled by the user through theI2 C bus interface . The potentiometer has an associatedvolatile Wiper Register (WRi) and a non-volatile Initial ValueRegister (IVRi)that can be directly written to and read by theuser. The contents of the WRi control the position of thecorresponding wiper.At power up the device recalls thecontents of the DCP’s IVRi to the correspondent WRi 

The ISL22343 also has 11 general purpose non-volatileregisters that can be used as storage of lookup table formultiple wiper position or any other valuable information .

The ISL22343 features a dual supply, that is beneficial forapplications requiring a bipolar range for DCP terminalsbetween V- and VCC .

Each DCP can be used as three-terminal potentiometers oras two-terminal variable resistors in a wide variety ofapplications including control, parameter adjustments, andsignal processing .

Product Features

•  Four potentiometers in one package

•  256 resistor taps

•  I2 C 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: 70Ω 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

•  10kΩ, 50kΩ or 100kΩ total resistance

•  Extended industrial temperature range: -40°C to +125°C

•  20 Ld TSSOP or 20 Ld QFN

•  Pb-free (RoHS compliant)

Product Specification

Product Photos

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