LM324 Quad Op Amp

The LM324 Quad Op Amp is a 14-pin integrated circuit with four independent operational amplifiers that share one power supply. It runs from a single 3 V to 32 V supply and its input range includes ground, so it works in 5 V and 12 V circuits without a negative rail. With four amplifiers in one chip, it is a compact choice for multi-channel sensor amplifiers, comparators and active filters.

LM324 Quad Op Amp Specifications

• Amplifiers: 4 independent op-amps, internally frequency compensated
• Supply voltage: 3 V to 32 V single supply, or ±1.5 V to ±16 V dual supply
• Supply current: about 0.7 mA typical for all four amplifiers at 5 V
• Input common-mode range: includes ground (0 V)
• Unity-gain bandwidth: about 1 MHz
• DC voltage gain: about 100 dB
• Pinout: pin 4 VCC, pin 11 GND, outputs on pins 1, 7, 8 and 14

LM324 Quad Op Amp Applications

• Amplifying small signals from sensors, microphones and current shunts
• Multi-channel voltage comparators and level detectors
• Active low-pass and band-pass filters
• Signal conditioning for Arduino and ESP32 analog inputs
• Electronics education and lab experiments

What's in the Box

• 1 × LM324 quad op-amp IC

Tip: The output swings down to about 0 V but only up to roughly 1.5 V below VCC, so choose a supply higher than the largest output you need. Wire any unused amplifier as a voltage follower with its + input tied to ground or mid-supply to keep it stable.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.