LM258DGKRG4 Linear - Amplifiers - Instrumentation, Operational Amplifiers, Buffer Amplifiers by Texas Instruments

The LM258DGKRG4 is a dual operational amplifier (op-amp) manufactured by Texas Instruments. It is designed for a variety of applications, including signal conditioning, filtering, and amplification. Here’s a detailed description of its features and specifications:

General Description:

• Type: Dual Operational Amplifier
• Package: The LM258DGKRG4 typically comes in a small outline integrated circuit (SOIC) package, which is surface-mounted and designed for efficient space utilization on printed circuit boards (PCBs).
• Pin Count: The device usually has 8 pins, allowing for easy integration into various electronic designs.

Electrical Characteristics:

• Supply Voltage: The LM258 can operate with a wide supply voltage range, typically from 3V to 32V for single supply and ±1.5V to ±16V for dual supply configurations.
• Input Voltage Range: The input common-mode voltage range extends from the negative supply voltage to a few volts below the positive supply, making it versatile for different applications.
• Output Voltage Swing: The output can swing close to the supply rails, providing a high output voltage range, which is beneficial for driving loads directly.

Performance Specifications:

• Gain Bandwidth Product: The LM258 features a gain bandwidth product of approximately 1 MHz, which indicates its frequency response and ability to amplify signals effectively.
• Slew Rate: The typical slew rate is around 0.5 V/µs, which defines how quickly the output can respond to rapid changes in the input signal.
• Input Impedance: The input impedance is high, typically in the range of megaohms, which minimizes the loading effect on the preceding stage of the circuit.

Applications:

• The LM258 is suitable for a wide range of applications, including:
  • Audio signal processing
  • Active filters
  • Voltage followers
  • Integrators and differentiators
  • Comparators

Thermal and Reliability Features:

• Operating Temperature Range: The device is rated for operation in a standard temperature range, typically from -40°C to +85°C, making it suitable for industrial and consumer applications.
• Thermal Shutdown: Some variants may include thermal protection features to prevent damage due to overheating.

Additional Features:

• Low Noise: The LM258 is designed to provide low noise performance, which is critical in audio and precision measurement applications.
• Low Power Consumption: It is optimized for low power usage, making it ideal for battery-operated devices.

Conclusion:

The LM258DGKRG4 from Texas Instruments is a versatile and reliable dual op-amp that offers a combination of performance, efficiency, and ease of use, making it a popular choice among engineers and designers for various electronic applications. Its robust specifications and wide range of operating conditions allow it to be integrated into both simple and complex circuits effectively.