The LM358 is one of the most popular and widely used dual operational amplifiers IC in many electronic circuits. IC contains two independent, high gain op amps and it is designed to operate from a single power supply, so it is an ideal for low voltage and battery powered circuits. The ability to sense input signals down to ground and provide rail to ground output, which makes it extremely good choice in analog circuit designs. This article describes the Pinout, Features, Specifications and Uses of LM358.
LM358 Pinout
To check the pinout of an IC, first identify the notch or dot marking. If there is a dot, the pin closest to the dot is Pin 1. If there is a notch, hold the IC with the notch facing upward, and count the pins from the top left corner downward as 1, 2, 3, and 4, then continue from the bottom right pin upward as 5, 6, 7, and 8. The LM358 IC pinout configuration is shown below.
| Pin No. | Pin Name |
|---|---|
| 1 | Output 1 |
| 2 | Inverting Input 1 (−) |
| 3 | Non-Inverting Input 1 (+) |
| 4 | Vdd or GND |
| 5 | Non-Inverting Input 2 (+) |
| 6 | Inverting Input 2 (−) |
| 7 | Output 2 |
| 8 | Vcc+ |
Features and Specifications
- Dual operational amplifiers in a single package
- Wide single supply operation: 3V to 32V
- Dual supply operation: +/-1.5V to +/-16V
- Low supply current: typically 0.5 mA per op-amp
- LM358H has Large DC voltage gain: about 100 dB
- Wide bandwidth (unity gain): 1 MHz
- Input Common Mode Voltage includes ground
- Output swings to ground even with single supply
- Internally frequency compensated
- Short circuit protection
- Low input offset voltage: typically 2 mV
Uses of LM358
- Amplifying weak sensor signals.
- Used in active filter circuits (low-pass, high-pass, band-pass).
- Works as a voltage comparator for threshold detection.
- Used in oscillator and waveform generator circuits.
- Using as a voltage follower (buffer) to prevent signal loading.
- Precision rectifier and peak detector circuits.
- Used in battery monitoring and charger control circuits.
- Current sensing and motor control feedback.
- Used in LED driver and light-control circuits.
- Used for signal conditioning in microcontroller projects.
Equivalent IC for Replacement
- LM2904
- LM258
- LM158
- OP07
- TL072 / TL082
Why LM358 IS Most Common Op amp IC?
The LM358 IC is so common because it’s unique features like low cost, low-power, dual channel operational amplifier (op-amp) that runs easily on a single power supply. This make the IC as a most common in every electronics circuits where op amps needed.
Advantages
The major advantage of LM358 is listed here, the first one is the IC can works perfectly from a single supply, unlike many op amps requiring a dual power supply. The IC Available in low cost DIP and SMD packages.
The Inputs can go down to ground level, so this make an ideal choice for which is ideal for interfacing with the sensor based projects. The IC requires only low power to work so very low power consumption makes it ideal for battery devices.
Also Check LM358 based circuits : lm358 Projects
