General Description

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.

Features

♦ +4.5V to +20V Supply to -4.5V to -20V Output

♦ Cascaded Voltage Multiplication (VOUT = -n x V+)

♦ 99.7 Typical Open Circuit Conversion Efficiency

♦ Requires Only 2 External Capacitors

♦ Pin Compatible with the ICL7660

Applications

Indepensive Negative Supplies

Data Acquisition Systems

Up to -20V for Op Amps, and Other Linear Circuits

Supply Splitter, VOUT = Vs/2

RS-232 Power Supplies