LM358 Dual Operational Amplifier
The LM358 is a dual operational amplifier. It includes two independent op-amps in a single package. The IC supports single or dual power supply operation. Voltage ranges from 3 V to 32 V for single supply, or ±1.5 V to ±16 V for dual supply.
The input voltage range includes ground. The output swings near ground. Low supply current is maintained. Internal frequency compensation is built-in. Temperature stability is ensured across standard operating ranges.
The device fits low-power and space-constrained designs. It is used in audio, filtering, and sensor signal conditioning. Stability and versatility are provided in analog designs. The LM358 performs well in both consumer and industrial circuits.
Applications
Signal amplification in analog circuits
Audio preamplifiers and equalizers
Active filters and integrators
Voltage followers and buffer circuits
Sensor signal conditioning
Low-frequency oscillators and waveform generators
Analog computation and control loops
Motor and power control feedback systems
Battery-powered amplifier stages
General-purpose analog signal processing
Key Features
Two independent op-amps in one IC
Wide supply voltage range: 3 V to 32 V (single supply)
Low input offset voltage
Ground-sensing input stage
Output swings to ground
Internally frequency-compensated
Low supply current: 0.7 mA typical
Unity-gain stable
Low power consumption
Available in DIP-8, SOIC-8, and TSSOP-8 packages
Pin Configuration (8-Pin DIP/SOIC)
| Pin | Name | Description |
|---|---|---|
| 1 | Output 1 | Output of op-amp 1 |
| 2 | Inverting Input 1 | Inverting input of op-amp 1 |
| 3 | Non-Inv. Input 1 | Non-inverting input of op-amp 1 |
| 4 | V– (GND) | Ground or negative supply |
| 5 | Non-Inv. Input 2 | Non-inverting input of op-amp 2 |
| 6 | Inverting Input 2 | Inverting input of op-amp 2 |
| 7 | Output 2 | Output of op-amp 2 |
| 8 | V+ | Positive supply voltage |
Specifications Table
| Parameter | Value |
|---|---|
| Number of Op-Amps | 2 |
| Supply Voltage Range | 3 V to 32 V (single supply) |
| Dual Supply Range | ±1.5 V to ±16 V |
| Input Offset Voltage | 2 mV typical |
| Input Bias Current | 20 nA typical |
| Supply Current | 0.7 mA typical (both amps) |
| Unity Gain Bandwidth | ~1.1 MHz |
| Slew Rate | 0.3 V/µs ‘ |
| Output Voltage Swing | 0 V to (V+ – 1.5 V) |
| Operating Temperature Range | 0 °C to +70 °C (commercial) |
| Package Types | DIP-8, SOIC-8, TSSOP-8 |
