Description
The LM324 is a quad op-amp IC featuring four independent, high-gain, internally frequency-compensated operational amplifiers. It is ideal for both single-supply and dual-supply configurations, offering flexibility for a wide range of analog circuit applications.
Unlike many op-amps that require dual power rails, the LM324 operates efficiently from a single power supply, making it highly suitable for battery-powered systems. Its low power consumption, wide input voltage range, and consistent performance make it an excellent choice for signal conditioning, audio amplification, sensor interfacing, voltage followers, and other analog processing tasks.
✅ Key Features
Four independent op-amps in one 14-pin DIP package
Single-supply operation (3V to 32V) or dual supply (±1.5V to ±16V)
Internally frequency compensated
Low power consumption, suitable for portable applications
Wide common-mode input range, including ground
⚡ High differential input voltage range
High DC gain (typ. 100 dB)
Ideal for analog signal processing, amplifiers, filters, comparators, and more
Technical Specifications
| Parameter | Value |
|---|---|
| Number of Op-Amps | 4 (Quad-channel) |
| Supply Voltage Range | ±16 V (dual supply) or 3V–32V (single supply) |
| Input Voltage Range | –0.3 V to +32 V |
| Input Offset Voltage | ~2 mV (typical) |
| Input Bias Current | ~45 nA (typical) |
| Output Voltage Swing | 0 V to Vcc – 1.5 V |
| Slew Rate | 0.5 V/µs |
| Gain Bandwidth Product | ~1 MHz |
| Operating Temperature | 0°C to +70°C |
| Package Type | 14-Pin DIP or SOIC |
Package Includes
1 × LM324 Quad Operational Amplifier IC
Applications
Analog signal conditioning
Audio preamplifiers and filters
Sensor signal amplification
Voltage follower/buffer circuits
Comparators and analog logic
Battery-powered analog devices
️ General-purpose op-amp usage in hobby and industrial electronics
FAQ
Q1: Can I use LM324 in place of LM358?
✅ Yes. LM324 is essentially a quad version of LM358 (which is dual), and works similarly in most circuits.
Q2: Is it suitable for audio amplifier circuits?
Yes. While not Hi-Fi, LM324 is widely used in basic audio preamp and tone control circuits.
Q3: Can I power it from a 5V Arduino board?
Yes. LM324 can operate from a single 5V supply.
Q4: What’s the difference between LM324 and TL084?
TL084 has better noise performance and slew rate, but LM324 is more cost-effective and robust for general use.
Meta Title
LM324 Quad Op-Amp IC – 4-Channel Operational Amplifier | Robotech Shop BD
Meta Description
Buy LM324 quad operational amplifier IC online in Bangladesh. 4 independent op-amps, wide voltage range, single or dual supply. Perfect for signal processing, audio, and sensor circuits.
