The LM358 op amp belongs to a sort of low power dual operational amplifiers, consisted of two independent, high gain, internally frequency compensated operational amplifiers, which were designed specifically to operate from a single power supply over a wide range of voltages.
The LM358 is available in a chip sized package (8-Bump micro SMD) using National’s micro SMD package technology. Operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage.
The LM358 opamp features low power drain, a common mode input voltage range extending to ground/VEE, and single supply or split supply operation. It has several distinct advantages over standard operational amplifier types in single supply applications.
The amplifier can operate at supply voltages as low as 3.0 V or as high as 32 V. The common mode input range includes the negative supply, thereby eliminating the necessity for external biasing components in many applications. The output voltage range also includes the negative power supply voltage.
LM358 Datasheet
According to LM358 datasheet, it features:
- Short Circuit Protected Outputs
- True Differential Input Stage
- Single Supply Operation: 3.0 V to 32 V
- Low Input Bias Currents
- Internally Compensated
- Common Mode Range Extends to Negative Supply
- Single and Split Supply Operation
- ESD Clamps on the Inputs Increase Ruggedness of the Device without Affecting Operation
- NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable
- These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant
LM358 amplifier is used in a wide range in circuits, the most common applications:
- Transducer Amplifiers
- Conventional op-amp circuits
- Integrator, Differentiator, Summer, adder, Voltage follower, etc.
- DC gain blocks, Digital multimeters, Oscilloscopes
- Comparators (Loop control & regulation)
LM358 Pinout
LM358 operational amplifier has in total 8 pins. However, you need to know functions of every pins before it can work better for you.
The LM358 pinout diagram is as shown in the picture below:
And the pin configurations of LM358 are list as following:
- Pin 1, OUTPUT1, Output of Op-Amp 1
- Pin 2, INPUT1-, Inverting Input of Op-Amp 1
- Pin 3, INPUT1+, Non-Inverting Input of Op-Amp 1
- Pin 4, VEE, GND, Ground or Negative Supply Voltage
- Pin 5, INPUT2+, Non-Inverting Input of Op-Amp 2
- Pin 6, INPUT2-, Inverting Input of Op-Amp 2
- Pin 7, OUTPUT2, Output of Op-Amp 2
- Pin 8, VCC, Positive Supply Voltage
LM358 Circuit
Circuit schematics can help us to understand better about how a component or chip is used and worked in circuits. It’s a reference to make them work in an actual circuit.
The following LM358 circuit schematic is a sample for reference.
LM358 Equivalent / Replacement
The equivalent for LM358 IC are LM358A, LM358E, LM358-N, LM358W.
Pls learn their differences clearly by comparing datasheet, pinout, and applications before you choose for a replacement.