onsemi

MC33178DG

MC33178DG Description

The MC33178DG from onsemi is a high-performance, general-purpose dual operational amplifier designed for precision analog applications. Operating within a 4V to 36V supply range, it delivers robust performance with a 5 MHz gain bandwidth product and a 2V/µs slew rate, making it suitable for high-speed signal conditioning. The device exhibits low input offset voltage (150 µV) and minimal input bias current (100 nA), ensuring accuracy in sensitive circuits. Packaged in an 8-SOIC tube, this surface-mount IC is optimized for space-constrained designs while maintaining reliability. Though marked obsolete, it remains a viable choice for legacy systems requiring stable, low-noise amplification.

MC33178DG Features

• Wide Supply Range: Supports 4V to 36V, accommodating diverse power configurations.
• Low Power Consumption: 1.7mA per channel (dual) for energy-efficient operation.
• High Output Drive: 100 mA/channel current output for driving capacitive or low-impedance loads.
• Low Noise: 100 nA input bias current and 150 µV offset voltage enhance signal fidelity.
• Robust Packaging: MSL 1 (Unlimited) moisture sensitivity ensures handling flexibility.
• High Slew Rate: 2V/µs enables fast transient response, outperforming many general-purpose op-amps.

MC33178DG Applications

• Active Filters & Signal Conditioning: Ideal for audio and instrumentation due to low noise and wide bandwidth.
• Power Supply Control: Stable performance in voltage regulation and feedback loops.
• Sensor Interfaces: Precision amplification for thermocouples, strain gauges, and other low-level signals.
• Industrial Systems: Suits harsh environments with its 36V tolerance and robust design.
• Legacy Equipment Maintenance: A reliable drop-in replacement for obsolete designs.

Conclusion of MC33178DG

The MC33178DG combines versatility, precision, and durability, making it a standout choice for general-purpose amplification despite its obsolete status. Its wide voltage range, low power draw, and high output drive cater to demanding applications in industrial, automotive, and consumer electronics. Engineers seeking a cost-effective, high-performance op-amp for legacy upgrades or noise-sensitive designs will find this IC exceptionally capable.