Digital Potentiometer 256POS 100KOhm Quad 20-Pin TSSOP

The ISL23345 is a volatile, low voltage, low noise, low power, 256 tap, quad digitally controlled potentiometer (DCP) with an I2C Bus interface. It integrates four 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. Each potentiometer has an associated volatile Wiper Register (WRi, i = 0, 1, 2, 3) that can be directly written to and read by the user.

• Four potentiometers per package
• 256 resistor taps
• 10k? 50k? or 100k? total resistance
• Wiper resistance: 70? typical @ VCC = 3.3V
• Power-on preset to mid-scale (128 tap position)
• Extended industrial temperature range: -40°C to +125°C
• 20 Ld TSSOP or 20 QFN packages
• Pb-free (RoHS compliant)