Renesas | ISL23318WFRUZ-T7A

This device integrates DCP core, 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 ISL23318 make it an ideal choice for use in battery operated equipment.

Features:

• 128 resistor taps
• I2C serial interface
  • No additional level translator for low bus supply
  • Two address pins allow up to four devices per bus
• Power supply
  • VCC = 1.7 V to 5.5 V analog power supply
  • VLOGIC = 1.2 V to 5.5 V I2C bus/logic power supply
• Wiper resistance: 70 Ω typical @ VCC = 3.3 V
• 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 (64 tap position)
• Shutdown and standby current <2.8 μA max
• DCP terminal voltage from 0V to VCC
• 10 kΩ total resistance
• Extended industrial temperature range: -40°C to +125°C
• 10 Ld UTQFN packages
• Pb-free (RoHS compliant)

Applications:

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