ISL23315TFUZ-T7A

The ISL23315TFUZ-T7A is a single e low noise Digitally-controlled Potentiometer (DCP) for use with LCD bias compensation. It 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 is 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 content 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 makes 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.

• 256 Resistor taps
• No additional level translator for low bus supply
• Two address pins allow up to four devices per bus
• DCP Terminal voltage from 0V to VCC
• Shutdown mode - forces the DCP into an end-to-end open circuit and RW is shorted to RL internally
• <lt/>2.8µA Maximum shutdown and standby current

Applications

Power Management, Metering