LM358DGKR Linear - Amplifiers - Instrumentation, Operational Amplifiers, Buffer Amplifiers by Texas Instruments

The LM358DGKR 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 LM358DGKR comes in a small outline integrated circuit (SOIC) package, which is surface-mounted. The "DGK" in the part number indicates the specific package type, while the "R" signifies that it is a reel of parts for automated assembly.

Electrical Characteristics:

• Supply Voltage: The LM358 can operate with a single supply voltage ranging from 3V to 32V, or dual supplies of ±1.5V to ±16V, making it versatile for various applications.
• Input Voltage Range: The input common-mode voltage range extends from the negative supply voltage to about 1.5V below the positive supply voltage, allowing it to handle a wide range of input signals.
• Output Voltage Swing: The output can swing close to the ground level (for single-supply applications) and can reach within a few volts of the positive supply rail, providing good output performance.

Performance Specifications:

• Gain Bandwidth Product: The LM358 typically has a gain bandwidth product of around 1 MHz, which is suitable for many low-frequency applications.
• Slew Rate: The typical slew rate is about 0.3 V/µs, which indicates how quickly the output can respond to changes in the input signal.
• Input Impedance: The input impedance is high, typically around 10^6 ohms, which minimizes the loading effect on the preceding stage.

Applications:

The LM358 is widely used in various applications, including:

• Signal amplification
• Active filters
• Comparators
• Oscillators
• Integrators and differentiators

Thermal and Mechanical Characteristics:

• Operating Temperature Range: The device is rated for operation over a temperature range of -40°C to +125°C, making it suitable for industrial and automotive applications.
• Thermal Resistance: The SOIC package has a low thermal resistance, allowing for efficient heat dissipation.

Pin Configuration:

The LM358DGKR typically has 8 pins, with the following configuration:

1. Offset Null: Used for offset voltage adjustment.
2. Inverting Input (A): The inverting input for the first op-amp.
3. Non-Inverting Input (A): The non-inverting input for the first op-amp.
4. Output (A): The output for the first op-amp.
5. Non-Inverting Input (B): The non-inverting input for the second op-amp.
6. Inverting Input (B): The inverting input for the second op-amp.
7. Output (B): The output for the second op-amp.
8. V- (Negative Supply): The negative power supply pin.

Conclusion:

The LM358DGKR from Texas Instruments is a reliable and versatile dual op-amp that is widely used in both consumer and industrial electronics. Its combination of low power consumption, wide supply voltage range, and good performance characteristics make it a popular choice for engineers and designers in various applications.