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