The ISL90842UIV1427Z integrates four digitally controlled potentiometers (DCP) configured as variable resistors on a monolithic CMOS integrated circuit. The digitally controlled potentiometers are 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. Each potentiometer has an associated 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. The DCPs can be used as two-terminal variable resistors in a wide variety of applications including control, parameter adjustments, and signal processing.
Feature
Four variable resistors in one package
256 resistor taps - 0.4% resolution
I2C serial interface
Wiper resistance: 70Ω typical @ 3.3V
Standby current <5µA max
Power supply: 2.7V to 5.5V
50kΩ, 10kΩ total resistance
14 Lead TSSOP
Pb-free plus anneal available (RoHS compliant)
The ISL90842UIV1427Z is a digitally controlled potentiometer (DCP) integrated circuit by Renesas Electronics Corporation. It features four variable resistors in a single 14 - Lead TSSOP package. With 256 resistor taps per potentiometer, it offers a 0.4% resolution. The device operates over a wide supply voltage range of 2.7V to 5.5V and has a standby current of less than 5μA max. It uses an I²C serial interface for easy digital control, has a total resistance of 50kΩ or 10kΩ, and a typical wiper resistance of 70Ω at 3.3V. It's Pb - free and RoHS compliant, making it suitable for a wide range of applications where digital resistance control is needed.
Benefits
Four variable resistors in one package, enabling multi - channel resistance control
256 resistor taps provide 0.4% resolution for precise resistance adjustment
I²C serial interface for easy integration into digital systems
Low typical wiper resistance of 70Ω at 3.3V
Standby current <5μA max, suitable for low - power applications
Wide power supply range from 2.7V to 5.5V, adaptable to various power sources
Available with 50kΩ or 10kΩ total resistance, meeting different application requirements
14 - Lead TSSOP package for PCB mounting
Pb - free and RoHS compliant, environmentally friendly
Application Examples
Audio equipment for volume control
Test and measurement instruments for calibration
Automation systems for precision control
Medical devices where accurate resistance adjustment is required
Catalogue
FPGA / CPLD
Memory
MOS 
MCU 
DSP
OCEP
Secondary 
Other 
