The LM358 Op-Amp boasts a specialized design tailored for seamless operation across a diverse spectrum of voltage supplies. It shines particularly in low-voltage AC scenarios and moderate-voltage DC applications. What's more, its compact form factor and cost-effectiveness render it a staple in numerous real-world applications, such as transducer amplification, DC gain augmentation, active filtering, and conventional op-amp circuitry. The LM358 IC gracefully accommodates supply voltages ranging from 3V to 32V DC, with the capacity to source up to 20 mA per channel.

Within this comprehensive guide, we delve into the fundamental aspects of the Dual Op-Amp LM358, including its basics, features, circuits, working, pin configuration, equivalents & applications.

What is LM358?

The LM358 IC is a dual operational amplifier integrated circuit, housing two Op-Amps that share a common power supply. It's akin to one-half of the LM324 Quad op-amp, which encompasses four op-amps operating under a unified power supply. The LM358 series introduces two independent, high-gain operational amplifiers that come internally frequency compensated. Their distinct design enables them to operate seamlessly across a broad spectrum of voltage ranges, particularly while drawing power from a single supply source.

What sets the LM358 series apart is its lineage, inheriting circuit designs perfected for Quad Operational Amplifiers. We also provided a detailed introduction to LM358N Op-Amp in the previous article. These dual operational amplifiers are characterized by their low power consumption, an expansive common mode input voltage range that extends to ground/VEE, and the flexibility of operating with either a single supply or a split supply configuration. Essentially, the LM358 series corresponds to one-half of an LM324. These amplifiers offer several distinct advantages over conventional operational amplifier types, particularly in single-supply applications. They can function reliably within supply voltage limits ranging from as low as 3.0 V to as high as 32 V. Furthermore, their quiescent currents are approximately one-fifth of those typically associated with the MC1741, calculated on a per-amplifier basis. The common mode input range even includes the negative supply, effectively eliminating the need for external biasing components in many applications. Additionally, the output voltage range encompasses the negative power supply voltage.

Pin Configuration