ICL7662

PRODUCTION

CMOS Voltage Converters

Inductorless Inverter

Data Sheet (Rev. 2) Product Selection Table
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Overview

  • +4.5V to +20V Supply to -4.SV to -20V Output
  • Cascaded Voltage Multiplication (VOUT= -n x v•)
  • 99.70/o Typical Open Circuit Conversion Efficiency
  • Requires Only 2 External Capacitors
  • Pin Compatible with the ICL7660

The ICL7662/Si7661 is a monolithic charge pump voltage inverter that will convert a positive voltage in the range of +4.5V to +20V to the corresponding negative voltage of -4.5V to -20V. The ICL 7662/Si7661 provides performance far superior to previous implementations of charge pump voltage inverters by combining low quiescent current with high efficiency. The ICL7662/Si7661 has an oscillator, control circuitry, and 4 power MOS switches on-chip, with the only required external components being two low cost capacitors.

APPLICATIONS

  • Inexpensive Negative Supplies
  • Data Acquisition Systems
  • Up to -20V for Op Amps, and Other Linear Circuits
  • Supply Splitter, VOUT = Vs/2
  • RS-232 Power Supplies
ICL7662
CMOS Voltage Converters
ICL7662, Si7661: Typical Operating Circuit
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Documentation

Data Sheet 1

Reliability Data 1

Technical Articles 1

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