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ISL23318 - 128-taps Low Voltage Digitally Controlled Potentiometer

Description

I2C bus /logic supply.

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 = 1.7V to 5.5V analog power supply - VLOGIC = 1.2V to 5.5V I2C bus/logic power supply.
  • Wiper resistance: 70Ω typical at VCC = 3.3V.
  • 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).

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Datasheet Details

Part number ISL23318
Manufacturer Renesas
File Size 0.97 MB
Description 128-taps Low Voltage Digitally Controlled Potentiometer
Datasheet download datasheet ISL23318 Datasheet

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Full PDF Text Transcription

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ISL23318 Single, 128-taps Low Voltage Digitally Controlled Potentiometer (XDCP™) DATASHEET The ISL23318 is a volatile, low voltage, low noise, low power, I2C Bus™, 128 Taps, single digitally controlled potentiometer (DCP), which 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 are 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 contents of the WR controls the position of the wiper. When powered on, the ISL23318’s wiper always commences at mid-scale (64 tap position).
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