ISL23315TFUZ

The ISL23315 is a volatile, low voltage, low noise, low power, I2C Bus, 256 Taps, single digitally controlled potentiometer (DCP), which integrates DCP core, wiper switches and control logic on a monolithic CMOS integrated circuit. The digitally controlled potentiometer is implemented with a combination of resistor elements and CMOS switches. The position of the wipers are controlled by the user through the I2C bus interface. The potentiometer has an associated volatile Wiper Register (WR) that can be directly written to and read by the user. The contents of the WR controls the position of the wiper. When powered on, the ISL23315’s wiper will always commence at mid-scale (128 tap position). The low voltage, low power consumption, and small package of the ISL23315 make it an ideal choice for use in battery operated equipment. In addition, the ISL23315 has a VLOGIC pin allowing down to 1.2V bus operation, independent from the VCC value. This allows for low logic levels to be connected directly to the ISL23315 without passing through a voltage level shifter.

• 256 resistor taps
• 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 (128 tap position)
• Shutdown and standby current
• Power-on preset to mid-scale (128 tap position)
• Shutdown and standby current <2.8µA max
• DCP terminal voltage from 0V to VCC
• 10k? 50k? or 100k? total resistanc
• 10 Ld MSOP or 10 Ld µTQFN packages
• Pb-free (RoHS compliant)