Texas Instruments

LM358DG4

LM358DG4 Description

The LM358DG4 is a general-purpose operational amplifier (op-amp) from Texas Instruments, designed for a wide range of applications. It features a dual-channel configuration, providing two independent amplifiers in a single package. This op-amp is known for its robust performance and versatility, making it suitable for various analog signal processing tasks. The LM358DG4 operates over a wide supply voltage range, from 3 V to 30 V, and offers a gain bandwidth product of 700 kHz. It also has a low input bias current of 20 nA and a supply current of 500 µA per channel. The device is housed in an 8-pin SOIC package, which is ideal for surface-mount applications. Despite being marked as obsolete, the LM358DG4 remains a reliable choice for many engineers due to its proven track record and availability.

LM358DG4 Features

• Wide Supply Voltage Range: The LM358DG4 can operate from 3 V to 30 V, making it suitable for a variety of power supply configurations.
• Gain Bandwidth Product: With a gain bandwidth product of 700 kHz, the LM358DG4 provides sufficient bandwidth for many general-purpose applications.
• Low Input Bias Current: The low input bias current of 20 nA ensures minimal loading on the input signal source, preserving signal integrity.
• Dual-Channel Configuration: The dual-channel design allows for two independent amplifiers in a single package, saving space and reducing component count.
• Surface-Mount Package: The 8-pin SOIC package is ideal for surface-mount technology (SMT), enabling compact and reliable PCB designs.
• Low Supply Current: Each channel consumes only 500 µA, making the LM358DG4 energy-efficient and suitable for low-power applications.
• High Output Current: Each channel can drive up to 40 mA, providing robust output capabilities for driving various loads.
• Low Input Offset Voltage: The input offset voltage of 3 mV ensures accurate signal amplification and minimal error in the output signal.
• Compliance: The LM358DG4 is REACH unaffected and RoHS3 compliant, adhering to environmental and safety standards.

LM358DG4 Applications

The LM358DG4 is well-suited for a variety of applications due to its general-purpose nature and robust performance. Some specific use cases include:

• Signal Amplification: Ideal for amplifying weak analog signals in sensors, audio circuits, and instrumentation.
• Active Filters: Can be used to design active filters for signal conditioning and noise reduction.
• Voltage Buffers: Functions as a voltage buffer to drive high-capacitance loads without loading the input signal.
• Transducer Amplifiers: Suitable for amplifying signals from various transducers, such as temperature sensors and pressure sensors.
• DC Amplifiers: Provides stable DC amplification for precision measurements and control systems.
• Consumer Electronics: Commonly used in consumer electronics for signal processing and amplification tasks.

Conclusion of LM358DG4

The LM358DG4 is a versatile and reliable general-purpose operational amplifier from Texas Instruments. Its wide supply voltage range, low input bias current, and dual-channel configuration make it suitable for a variety of applications. Despite being marked as obsolete, the LM358DG4 remains a popular choice for engineers due to its proven performance and availability. Its low supply current and high output current capabilities further enhance its suitability for low-power and high-drive applications. Whether used in signal amplification, active filters, or transducer amplifiers, the LM358DG4 provides robust performance and reliability.