LMC7660IM/NOPB

The LMC7660IM/NOPB is a precision voltage converter integrated circuit (IC) manufactured by Texas Instruments. It is designed primarily for applications requiring a negative voltage supply from a positive voltage source. This device is particularly useful in situations where a negative voltage is needed for operational amplifiers or other analog circuits.

Key Features:

1. Voltage Conversion: The LMC7660 can generate a negative output voltage that is equal in magnitude to the input voltage. For example, if the input is +5V, the output can be -5V.

2. Output Current: The IC can provide a maximum output current of approximately 20 mA, making it suitable for low to moderate power applications.

3. Low Quiescent Current: The device features a low quiescent current, which enhances its efficiency, especially in battery-powered applications.

4. Wide Input Voltage Range: The LMC7660 operates over a wide input voltage range, typically from 1.5V to 12V, allowing it to be used in various applications.

5. High Efficiency: The charge pump architecture used in the LMC7660 allows for efficient voltage conversion with minimal power loss.

6. Pin Configuration: The IC is available in an 8-pin MSOP (Micro Small Outline Package) or DIP (Dual In-line Package) form factor, making it easy to integrate into different circuit designs.

7. Protection Features: The LMC7660 includes built-in protection against reverse polarity and over-voltage conditions, enhancing its reliability in various applications.

8. Temperature Range: The device operates effectively over a specified temperature range, typically from -40°C to +85°C, making it suitable for industrial and automotive applications.

Applications:

• Operational Amplifier Power Supplies: It is commonly used to provide the necessary negative voltage for op-amps in signal processing applications.
• Analog Signal Processing: The LMC7660 is ideal for circuits that require dual supply voltages for proper operation.
• Battery-Powered Devices: Its low power consumption makes it suitable for portable and battery-operated devices.
• Signal Conditioning: It can be used in signal conditioning circuits where negative voltages are required.

Conclusion:

The LMC7660IM/NOPB from Texas Instruments is a versatile and efficient voltage converter that simplifies the design of circuits requiring negative voltage supplies. Its combination of low power consumption, wide input voltage range, and robust performance makes it a popular choice among engineers and designers in various electronic applications.