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.
- 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
- 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.