ICL7660SCBAZ-T

The ICL7660SCBAZ-T is a precision voltage converter integrated circuit (IC) manufactured by Intersil, designed primarily for applications requiring a negative voltage supply from a positive voltage source. This device is particularly useful in powering operational amplifiers and other analog circuits that require dual polarity supplies.

Key Features:

1. Voltage Conversion: The ICL7660SCBAZ-T can generate a negative voltage output that is equal in magnitude to the positive input voltage. For example, if a +5V input is provided, the output can be -5V.

2. Charge Pump Technology: This IC utilizes a charge pump technique, which allows it to convert the input voltage without the need for inductors, making it compact and efficient. The charge pump operates by switching capacitors to transfer charge and create the desired output voltage.

3. Output Current: The device can typically provide an output current of up to 20 mA, making it suitable for low to moderate power applications.

4. Low Quiescent Current: The ICL7660SCBAZ-T features low quiescent current consumption, which is beneficial for battery-powered applications where energy efficiency is critical.

5. Operating Voltage Range: The IC operates over a wide input voltage range, typically from +1.5V to +10V, allowing it to be used in various applications.

6. Temperature Range: It is rated for operation over a temperature range of -40°C to +85°C, making it suitable for industrial and automotive applications.

7. Pin Configuration: The ICL7660SCBAZ-T is available in an 8-pin SOIC (Small Outline Integrated Circuit) package, which provides a compact footprint for space-constrained designs.

8. Applications: Common applications include powering op-amps, analog signal processing, and providing negative voltage rails in instrumentation and sensor applications.

Electrical Characteristics:

• Input Voltage (V+): 1.5V to 10V
• Output Voltage (V-): Typically -V+ (inverted)
• Output Current (Iout): Up to 20 mA
• Quiescent Current (Iq): Low, typically in the microamp range
• Efficiency: High efficiency due to the charge pump design

Conclusion:

The ICL7660SCBAZ-T is a versatile and efficient voltage converter that simplifies the design of circuits requiring negative voltage supplies. Its compact size, low power consumption, and wide operating range make it an excellent choice for a variety of electronic applications. Whether in consumer electronics, industrial equipment, or automotive systems, this IC provides a reliable solution for generating negative voltages from a single positive supply.