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MC4558CD

MC4558CD Description

The MC4558CD is a general-purpose dual operational amplifier (op-amp) from Fairchild Semiconductor (now onsemi), housed in an 8-pin SOIC package. Designed for precision analog signal processing, it operates over a wide supply voltage range (4V to 40V) and delivers stable performance across a 0°C to 70°C temperature range. With a 5.5 MHz gain bandwidth product (GBW) and a slew rate of 2.2V/µs, it balances speed and accuracy, making it suitable for a variety of linear and audio applications.

MC4558CD Features

• Dual Op-Amp Configuration: Integrates two independent amplifiers in a single IC, reducing board space and cost.
• Low Input Bias Current (50 nA): Minimizes errors in high-impedance circuits.
• High Output Current (20 mA per channel): Capable of driving moderate loads directly.
• Low Input Offset Voltage (1 mV): Enhances precision in DC-coupled applications.
• Wide Supply Range (4V–40V): Supports both low-voltage and industrial-level designs.
• Moderate Power Consumption (2.3mA supply current): Balances performance and energy efficiency.

MC4558CD Applications

• Audio Processing: Ideal for preamplifiers, tone controls, and active filters due to its low noise and wide bandwidth.
• Signal Conditioning: Used in sensor interfaces, instrumentation amplifiers, and data acquisition systems.
• Industrial Control Systems: Suitable for servo amplifiers, voltage comparators, and feedback loops in automation.
• Consumer Electronics: Commonly found in audio mixers, equalizers, and portable devices requiring robust performance.

Conclusion of MC4558CD

The MC4558CD is a versatile, cost-effective dual op-amp offering a balance of speed, precision, and power efficiency. While now classified as obsolete, its legacy in audio and industrial applications remains notable. Engineers seeking alternatives should consider modern equivalents, but for legacy designs or specific use cases, the MC4558CD continues to deliver reliable performance in general-purpose amplification and signal processing tasks.