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LM324N

Quad General Purpose Op-Amp, 3-32V single supply, 1MHz GBW, PDIP-14

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Manufacturer Part：

LM324N

Package：

PDIP-14 (19.18 x 6.35 x 5.08 mm)

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Description

Product Overview

The LM324N is a quad operational amplifier manufactured by Texas Instruments (also available from onsemi and others). It consists of four independent high-gain internally frequency-compensated op-amps designed for single-supply operation from 3V to 32V. The device features low supply current drain, input common-mode voltage range including ground, and large output voltage swing, making it one of the most widely used general-purpose op-amps.

Key Specifications

Number of Channels 4
Supply Voltage Range 3V to 32V single, +/-1.5V to +/-16V dual
Gain Bandwidth Product 1MHz
Slew Rate 0.5V/us
Input Offset Voltage 7mV max
Input Bias Current 45nA typical
Supply Current (all amps) 700uA typical
Output Current 20mA typical
Operating Temperature 0C to 70C
Package PDIP-14

Features

  • Four internally compensated op-amps in single package
  • Single supply operation from 3V to 32V
  • Input common-mode range includes ground
  • Large DC voltage gain of 100dB
  • Very low supply current drain independent of voltage
  • Output voltage swings to ground
  • Eliminates need for dual supplies

Applications

  • Transducer amplifiers
  • DC gain blocks
  • Single-supply signal conditioning
  • Active filters
  • Conventional op-amp circuits in 5V digital systems

The LM324N is a quad operational amplifier from Texas Instruments, featuring four independent high-gain internally frequency-compensated op-amps in a 14-pin DIP package. Designed for single-supply operation from 3V to 32V, it eliminates the need for dual power supplies in many applications. The input common-mode voltage range includes ground, and the output can swing to ground, enabling direct use in 5V digital systems. Low supply current of 700uA (all four amplifiers) makes it suitable for battery-powered designs.

The LM324N contains four independent op-amps, each with a differential input stage, gain stages, and a class AB output stage. Internal frequency compensation provides stability at unity gain without external components. The input stage uses a Darlington configuration for low input bias current. The output stage features a current-sinking capability that allows the output to swing to ground without a pull-down resistor. Each amplifier operates independently with its own inverting input, non-inverting input, and output, sharing only the supply voltage connections.

Pin Name Type Function
1 1OUT Output Amplifier 1 output
2 1IN- Input Amplifier 1 inverting input
3 1IN+ Input Amplifier 1 non-inverting input
4 VCC Power Positive supply (3-32V)
5 2IN+ Input Amplifier 2 non-inverting input
6 2IN- Input Amplifier 2 inverting input
7 2OUT Output Amplifier 2 output
8 3OUT Output Amplifier 3 output
9 3IN- Input Amplifier 3 inverting input
10 3IN+ Input Amplifier 3 non-inverting input
11 GND Power Ground / negative supply
12 4IN+ Input Amplifier 4 non-inverting input
13 4IN- Input Amplifier 4 inverting input
14 4OUT Output Amplifier 4 output
  • Transducer and sensor signal amplification
  • Single-supply signal conditioning circuits
  • Active filter and oscillator designs
  • 5V digital system analog interfaces
  • Battery-powered instrumentation and control
Manufacturer Part Number Package Notes
onsemi LM324N PDIP-14 Second source equivalent
STMicroelectronics LM324DT SOIC-14 SMD version, extended temp
Texas Instruments LM2902N PDIP-14 Automotive grade, -40C to 125C
Microchip MCP6004-I/P PDIP-14 Low voltage rail-to-rail alternative
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Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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