Renesas | ISL23328WFRUZ-T7A

This device integrates two DCP cores, wiper switches and control logic on a monolithic CMOS integrated circuit. Each 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.

Features:

• Two potentiometers per package
• 128 resistor taps
• 10 kΩ total resistance
• I2C serial interface
  • No additional level translator for low bus supply
  • Three address pins allow up to eight devices per bus
• Maximum supply current without serial bus activity (standby)
  • 3 μA @ VCC and VLOGIC = 5V
  • 1.7 μA @ VCCand VLOGIC = 1.7V
• Shutdown Mode
  • Forces the DCP into an end-to-end open circuit and RWi is connected to RLi internally
  • Reduces power consumption by disconnecting the DCP resistor from the circuit
• Power supply
  • VCC = 1.7V to 5.5V analog power supply
  • VLOGIC = 1.2V to 5.5V I2C bus/logic power supply
• Wiper resistance: 70Ω typical @ VCC = 3.3V
• Power-on preset to mid-scale (64 tap position)
• Extended industrial temperature range: -40°C to +125°C
• 16 Ld μTQFN packages
• Pb-free (RoHS Compliant)

Applications:

• Power supply margining
• Trimming sensor circuits
• Gain adjustment in battery powered instruments
• RF power amplifier bias compensation