onsemi

MC33179DG

MC33179DG Description

The MC33179DG from onsemi is a quad general-purpose operational amplifier (op-amp) housed in a 14-SOIC package, designed for precision analog applications. Operating over a 4V to 36V supply range, it delivers robust performance with a 5 MHz gain bandwidth product (GBW) and a 2V/µs slew rate, making it suitable for high-speed signal conditioning. With low input bias current (100 nA) and low offset voltage (150 µV), this IC ensures accuracy in sensitive circuits. The device features four independent op-amps, each capable of driving 100 mA output current, and consumes 1.7mA per channel, balancing power efficiency with performance.

MC33179DG Features

• Wide Supply Range (4V–36V): Supports both single and dual-supply configurations.
• Low Noise & High Precision: 150 µV offset voltage and 100 nA input bias current enhance signal integrity.
• High Output Drive (100 mA/channel): Suitable for driving heavy loads like transducers or small motors.
• Surface-Mount (SOIC-14): Compact footprint ideal for space-constrained PCB designs.
• Obsolete Status: While discontinued, it remains a reliable choice for legacy or long-lifecycle designs.

MC33179DG Applications

• Industrial Control Systems: Signal amplification in PLCs or sensor interfaces due to its wide voltage range.
• Audio Processing: Low-noise characteristics suit preamplifiers and active filters.
• Test & Measurement Equipment: Precision signal chains benefit from its low offset and high GBW.
• Automotive Electronics: Robust performance in harsh environments (e.g., battery monitoring).

Conclusion of MC33179DG

The MC33179DG excels in general-purpose analog designs requiring high drive capability, low noise, and wide voltage operation. Its quad-channel integration reduces board space, while specifications like 5 MHz GBW and 2V/µs slew rate ensure responsiveness in dynamic applications. Though marked obsolete, it remains a viable option for maintenance or niche projects prioritizing proven performance. Engineers should evaluate alternatives for new designs but can leverage this IC’s reliability in legacy systems.