onsemi

MC33079DR2

MC33079DR2 Description

The MC33079DR2 from onsemi is a quad low-noise operational amplifier designed for precision analog applications. Housed in a 14-SOIC package and supplied in Tape & Reel (TR), this IC features a wide supply voltage range (10V to 36V), making it versatile for industrial and automotive systems. With a Gain Bandwidth Product (GBWP) of 16 MHz and a slew rate of 7V/µs, it delivers high-speed signal amplification while maintaining stability. The device exhibits low input bias current (300 nA) and low input offset voltage (150 µV), ensuring accuracy in sensitive circuits. Although marked as Obsolete, it remains a reliable choice for legacy designs requiring robust performance.

MC33079DR2 Features

• Quad-Channel Design: Integrates four independent op-amps in a single package, saving board space.
• Low Noise & High Precision: Optimized for applications demanding minimal signal distortion.
• Wide Supply Range (10V–36V): Suitable for both low-voltage and high-voltage systems.
• High Output Current (37 mA/channel): Capable of driving heavier loads compared to standard op-amps.
• Low Power Consumption (8.4mA supply current): Balances performance and energy efficiency.
• Surface-Mount (SOIC-14) Packaging: Ideal for compact, automated PCB assembly.
• REACH Unaffected: Compliant with environmental regulations, ensuring broader usability.

MC33079DR2 Applications

The MC33079DR2 excels in:

• Active Filters & Signal Conditioning: Its low noise and high GBWP make it ideal for audio and instrumentation systems.
• Industrial Control Systems: Robust performance under wide voltage ranges suits motor drives and sensor interfaces.
• Medical Equipment: Precision amplification for ECG amplifiers and patient monitoring devices.
• Automotive Electronics: Stable operation in harsh environments, such as engine control units (ECUs).
• Test & Measurement Gear: High slew rate and accuracy benefit oscilloscopes and data acquisition systems.

Conclusion of MC33079DR2

The MC33079DR2 is a high-performance quad op-amp offering low noise, wide voltage operation, and precision amplification. While obsolete, its combination of speed, accuracy, and drive capability ensures continued relevance in legacy and specialized designs. Engineers favor it for space-constrained, multi-channel applications where reliability and signal integrity are critical. For systems requiring low distortion and robust performance, this IC remains a compelling choice despite its discontinued status.