AMS682 - Advanced Monolithic Systems

AMS682 INVERTING VOLTAGE DOUBLER

The AMS682 is a CMOS charge pump converter that provides an inverted doubled output from a single positive supply. Requiring only three external capacitors for full circuit implementation the device has an on -board 12kHz (typical) oscillator which provides the clock. Low output source impedance (typically 140Ω), provides output current up to 10mA. The AMS68.

Features

• 99.9% Voltage Conversion Efficiency
• 92% Power Conversion Efficiency
• Wide Input Voltage Range +2.4V to 5.5V
• 185µ A Supply Current
• Available in SO-8 and PDIP Packages
• Only 3 external Capacitors Required AMS682 INVERTING VOLTAGE DOUBLER APPLICATIONS
• Portable Handheld Instrumentation
• Cellular Phones
• Panel Meters
• -10V from +5V logic Supply
• -6V from a Single 3V Lithium Cell
• LCD Display Bias Generator
• Operational Amplifiers Power Supplies GENERAL DESCRIPTION The AMS682 is a CMOS charge pump converter that provides an inverted doubled output from a single positive supply. .