LM358 Op-Amp – Dual Low Power Operational Amplifier IC – Compoden
LM358 Op-Amp
The LM358 is a dual low-power operational amplifier IC featuring two independent op-amps in a single 8-pin DIP package. It is widely used for signal amplification, sensor interfacing, comparator circuits, and active filter design. With its ability to operate from a single supply as low as 3V, it's a popular choice for battery-powered and microcontroller-based projects.
Key Specifications
| Specification | Value |
|---|---|
| Part Number | LM358 |
| Number of Channels | 2 |
| Supply Voltage (Single) | 3V to 32V |
| Supply Current per Channel | 0.5 mA (typ.) |
| Input Offset Voltage | 2 mV (max) |
| Package | DIP-8 |
What You Can Build With This
- Non-inverting amplifier for boosting weak sensor outputs
- Active low-pass filter for smoothing noisy analog signals
- Voltage comparator with adjustable hysteresis for threshold detection
- Audio preamplifier stage for electret microphones
Compatibility
The LM358 operates from standard 5V and 3.3V supplies, making it compatible with Arduino, ESP32, Raspberry Pi, and other development boards. It is often used with resistive sensor networks, potentiometers, and capacitor filters. Common pairings include the LM393 comparator or logic-level MOSFETs for driving loads.
Wiring Notes
Connect Vcc (pin 8) to +5V and GND (pin 4) to ground. For single-supply operation, bias the non-inverting input to half the supply voltage using a resistive divider. Add a 0.1µF ceramic bypass capacitor across Vcc and GND near the IC. The output can source or sink up to 20mA, so avoid driving heavy loads directly.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino?
Yes, LM358 works with the 5V supply from Arduino and can be used for analog signal conditioning, such as amplifying sensor outputs or creating voltage followers.
What is the supply voltage range?
It supports a wide single supply range from 3V to 32V, or dual supplies from ±1.5V to ±16V.
Can it drive a speaker directly?
No, the output current is limited to 20mA. For audio output, use an additional transistor amplifier or dedicated audio amplifier IC.
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Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items