Renesas | ISL23325WFRUZ-T7A

The ISL23325WFRUZ-T7A is a volatile, low voltage, low noise, low power digitally controlled potentiometer. It is available in 16 pin TQFN package.

This device integrates two DCP cores, wiper switches and control logic on a monolithic CMOS integrated circuit. It 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 low voltage, low power consumption, and small package of the ISL23325 make it an ideal choice for use in battery operated equipment.

Features:

• Two potentiometers per package
• 256 resistor taps
• 10k Ω 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 = 5 V
  • 1.7 μA @ VCCand VLOGIC = 1.7 V
• 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 (128 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