Introduction to LM358
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Introduction to LM358. LM-358 consists of two independent high gain frequency compensated operational amplifier. They are specially designed to operate from a single supply or split supplies over a wide range of voltages.
LM-358 have lot of amazing features associated with them. These features include wide supply ranges, low supply current drain, independent of supply voltage, wide unity gain bandwidth, ground includes I common mode input voltage range, low input bias, open loop differential voltage gain, internally frequency compensation etc. LM 358 has a lot real life applications e.g. Operational Amplifier (Op-amp) circuits, transducer amplifiers, DC gain blocks etc. LM-358 is available in as small size as chip. It is most commonly used device due to its cost efficiency.
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Introduction to LM358
LM 358 consists of two independent high gain frequency compensated Operational Amplifier (Op-amp). These are designed for the operation of this device from single supply or split supplies for a wide range of voltages. LM-358 real life applications include DC gain blocks, active filters, transducer amplifier, Op-amp circuit design etc. Further detail about LM 358 will be given later in this tutorial.
1. LM358 Pinout
- LM 358 has eight (8) pins in total having different individual functions associated with each of them.
- All the pins along with their sequence number are given in the table shown below.
2. LM358 Pins Configuration
- A properly labeled pin diagram of any device results in better standing of the user.
- I have made a completely labeled diagram of LM-358 diode along with its animation.
- The complete pinout diagram along with animation, symbolic representation and the real image of LM 358 is shown in the figure below.
3. LM358 Packages
- LM 358 has four (4) different type of packages DSBGA, PDIP, TO-CAN and SOT-23(5).
- All of theses packages along with their dimensions and part number are given in the table shown below.
4. LM358 Symbolic Representation
- Symbolic for of a device shows its internal circuitry.
- LM 358 symbolic representation is shown in the figure below.
5. LM358 Ratings
- The voltage, current and power ratings of any device shows its power requirement i.e. how much amount of current and voltage is sufficient for its operation.
- I have provided LM-358 current, power and voltage ratings in the table shown below.
6. LM358 Advantages
- LM-358 has several different advantages, a few of which are given below.
- There is no need of dual supply.
- Compatibility with all forms of logic.
- Two Op-amps, compensated internally.
- Power drain suitable for battery operation.
- Direct sensing near ground.
7. LM358 Applications
- LM 358 has a wide range of real life applications, few of the major applications are given below.
- DC gain blocks.
- General signal conditioning.
- Transducer amplifiers.
- General signal amplification.
- Active filters.
- Operational amplifier circuits.
- Current loop transmitters for 4 to 20mA.
7. LM358 Proteus Simulation
- I have also designed a Proteus Simulation of LM358 which will give you better idea of its working.
- In this simulation, I have designed a small automatic LED ON OFF circuit depending on LDR value.
- The image is shown in below figure:
- You can see in above figure that I have attached the LDR at input pins while the LED is attached at the output pin of LM358.
- Now when LDR is dark, then LED will remain OFF but when LDR will come in Light then LED will also turn ON.
- The variable resistor is used for sensitivity purposes.
- In the below image I have shown its ON state:
- You can see in above figure that now LED is ON because LDR is in LIGHT.
- You can download this LM358 Proteus Simulation by clicking the below button:
Download Proteus Simulation
So, that is all from the tutorial
Introduction to LM358. I hope you enjoyed this tutorial. If you have any kind of problem, you can ask me in comments, any time you want, without even feeling a bit of hesitation. I will try my level best to sort out your problems in a better way, if possible. Our team is also 24/7 here to help you out. I will explore further IC's and diodes in my upcoming tutorial and will surely share all of them with you as well. So, till then, Take Care :)