ISL23318WFRUZ-T7A

The ISL23318 is a volatile, low voltage, low noise, low power,I2C Bus, 128 Taps, single digitally controlled potentiometer(DCP), which integrates DCP core, wiper switches and controllogic on 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 theI2C bus interface. The potentiometer has an associatedvolatile Wiper Register (WR) that can be directly written to andread by the user. The contents of the WR controls the positionof the wiper. When powered on, the ISL23318’s wiper willalways commence at mid-scale (64 tap position).

• 128 resistor taps
• I2C serial interface
  • No additional level translator for low bus supply
  • Two address pins allow up to four devices per bus
• Power supply
  • VCC = 1.7V to 5.5V analog power supply
  • VLOGIC = 1.2V to 5.5V I2C bus/logic power supply
• Wiper resistance: 70? typical @ VCC = 3.3V
• Shutdown Mode - forces the DCP into an end-to-end open circuit and RW is shorted to RL internally
• Power-on preset to mid-scale (64 tap position)
• Shutdown and standby current <2.8µA max
• DCP terminal voltage from 0V to VCC
• 10k?, 50k? or 100k? total resistance
• Extended industrial temperature range: -40°C to +125°C
• 10 Ld MSOP or 10 Ld UTQFN packages
• Pb-free (RoHS compliant)