STMicroelectronics

L272  

OP Amps, Buffer Amps ICs

L272 Description

The L272 from STMicroelectronics is a general-purpose dual operational amplifier designed for a wide range of analog applications. Housed in a 16-pin POWERDIP package and supplied in a tube, this IC operates over a voltage supply range of 4V to 28V, making it suitable for both low and high-voltage circuits. With a gain bandwidth product of 350 kHz and a slew rate of 1V/µs, the L272 delivers stable performance in signal conditioning and amplification tasks. Its low input bias current (300 nA) and moderate input offset voltage (15 mV) ensure precision in DC-coupled systems. Although marked as obsolete, it remains a reliable choice for legacy designs due to its ROHS3 compliance and REACH unaffected status.

L272 Features

• Dual operational amplifier (2 circuits) with 1A output current per channel, enabling high-drive applications.
• Wide supply voltage range (4V–28V), accommodating diverse power environments.
• Low power consumption with 8mA supply current, ideal for battery-operated devices.
• High slew rate (1V/µs) and 350 kHz bandwidth, suitable for dynamic signal processing.
• Through-hole mounting for robust mechanical integration in industrial systems.
• MSL 1 (Unlimited) moisture sensitivity, ensuring long-term storage reliability.

L272 Applications

The L272 excels in:

• Power supply control circuits, leveraging its high output current for voltage regulation.
• Audio amplifiers and preamplifiers, where its bandwidth and slew rate minimize distortion.
• Motor drive systems, benefiting from its high current output and wide voltage range.
• Sensor signal conditioning, due to its low input bias and offset characteristics.
• Legacy industrial equipment, where obsolete-but-reliable components are preferred for maintenance.

Conclusion of L272

The L272 is a versatile, high-drive dual op-amp tailored for demanding analog applications. Its wide voltage range, robust output current, and balanced performance make it a pragmatic choice for power-sensitive and signal-processing designs. While newer alternatives exist, the L272’s durability and compliance ensure continued relevance in legacy and industrial systems. Engineers seeking a cost-effective, high-current op-amp with proven stability will find this IC a dependable solution.

L272 Documents

Download datasheets and manufacturer documentation for L272

Datasheets :

L272      

HTML Datasheet :

L272