STMicroelectronics

MC1458IN

MC1458IN Description

The MC1458IN is a general-purpose operational amplifier (op-amp) designed by STMicroelectronics, a leading manufacturer in the semiconductor industry. This IC is housed in a through-hole package, specifically an 8-pin mini DIP, making it suitable for a variety of applications requiring robust and reliable performance. Despite being marked as obsolete, the MC1458IN remains a viable option for many legacy systems and applications where its specific characteristics are still highly valued.

MC1458IN Features

The MC1458IN is a dual operational amplifier with a wide supply voltage range, spanning from 5 V to 30 V. This wide input voltage range allows it to operate effectively in various power supply environments, making it highly versatile for different applications. The op-amp has a gain bandwidth product of 1 MHz, which ensures stable performance across a broad frequency spectrum. Its slew rate of 0.8 V/µs allows for quick response times, making it suitable for applications requiring high-speed signal processing.

One of the key features of the MC1458IN is its low input bias current of 30 nA, which minimizes the impact of the amplifier on the input signal source. This is particularly beneficial in applications where high input impedance is required. The input offset voltage is maintained at a low 1 mV, ensuring accurate signal amplification and minimizing distortion.

The MC1458IN also boasts a supply current of 2.3 mA, which is relatively low compared to other op-amps in its class. This low power consumption makes it ideal for applications where energy efficiency is a priority. Each channel can deliver an output current of up to 25 mA, providing sufficient drive capability for a wide range of loads.

MC1458IN Applications

The MC1458IN is well-suited for a variety of applications due to its general-purpose design and robust performance characteristics. It is commonly used in signal conditioning circuits, where its low input bias current and low input offset voltage ensure accurate amplification of weak signals. Its wide supply voltage range and low power consumption make it ideal for battery-powered devices and portable electronics.

In audio applications, the MC1458IN can be used for preamplifier stages, providing clean and stable amplification of audio signals. Its high slew rate ensures that it can handle high-frequency audio signals without distortion, making it suitable for high-fidelity audio systems.

The MC1458IN is also used in industrial control systems, where its robust performance and wide operating voltage range make it suitable for interfacing with various sensors and actuators. Its ability to drive moderate loads makes it ideal for applications such as motor control and signal processing in automation systems.

Conclusion of MC1458IN

In summary, the MC1458IN is a versatile and reliable general-purpose operational amplifier with a wide range of applications. Its key features, such as low input bias current, low input offset voltage, and wide supply voltage range, make it suitable for a variety of applications, from signal conditioning to audio systems and industrial control. Despite being marked as obsolete, the MC1458IN remains a valuable component for many legacy systems and applications where its specific characteristics are still highly valued. Its low power consumption and robust performance make it a reliable choice for engineers and designers in the electronics industry.