ICL7660

The ICL7660 is a CMOS charge-pump voltage converter that is designed to invert, double, or divide a positive input voltage. It is highly efficient and can operate over a wide voltage range, making it ideal for battery-powered applications. The ICL7660 is commonly used to generate a negative supply voltage from a single positive supply.

Key Features:

• Voltage Conversion: Capable of inverting, doubling, or dividing the input voltage.
• Wide Input Voltage Range: Operates from 1.5V to 10V.
• High Efficiency: Provides efficient voltage conversion with minimal power loss.
• Low Power Consumption: Suitable for battery-operated devices.
• Compact Package: Available in DIP-8 and SOIC-8 packages.
• Simple Design: Requires only a few external components for operation.

Technical Specifications:

• Input Voltage: 1.5V to 10V
• Output Voltage: -Vin (inverting mode)
• Output Current: Up to 20mA (depending on input voltage and configuration)
• Quiescent Current: Typically 80μA
• Conversion Efficiency: Typically 98% at 5V input, 5mA output
• Operating Temperature Range: 0°C to +70°C
• Oscillator Frequency: Typically 10kHz

Applications:

• Battery-Powered Devices: Ideal for creating a negative supply voltage in portable electronics.
• Operational Amplifier Supply: Provides a negative rail for op-amp circuits.
• Data Acquisition Systems: Used in systems requiring dual supply voltages.
• Sensor Interfaces: Suitable for powering sensors and other interface circuits.
• Instrumentation: Applied in precision measurement and instrumentation equipment.
• LCD Biasing: Provides the necessary voltages for LCD displays.

Datasheet:
For detailed technical information, refer to the ICL7660 datasheet.