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LM324AN

Quad 30V 1.2MHz general-purpose op-amp, PDIP-14, single 3-32V or dual +/-1.5-+/-16V supply, 3mV max Vos, 700uA Iq, 0.5V/us slew rate, 0-70C.

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Manufacturer Part：

LM324AN

Package：

PDIP-14 (19.31 x 6.35 x 5.08mm)

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Description

Product Overview

The LM324AN is an industry-standard quad general-purpose operational amplifier from Texas Instruments in a PDIP-14 through-hole package. The A-version provides improved 3 mV max input offset voltage (vs. 7 mV for the LM324N). It operates from a single 3 V to 32 V or dual +/-1.5 V to +/-16 V supply with only 700 μA total quiescent current. The input common-mode range includes ground, and the output can swing to ground without pull-down resistors, making it exceptionally versatile for single-supply designs.

Key Specifications

Channels 4 independent op-amps
Supply Range Single: 3 V to 32 V / Dual: +/-1.5 V to +/-16 V
Gain-Bandwidth Product 1.2 MHz typ
Slew Rate 0.5 V/μs typ @ +/-15 V
Input Offset Voltage 3 mV max (A-version) @ 25 °C
Input Bias Current 45 nA typ / 100 nA max
Quiescent Current 0.7 mA typ / 1.2 mA max @ 5 V (all 4 amplifiers)
Output Current 40 mA source / 20 mA sink typ
CMRR 65 dB min / 85 dB typ
Operating Temperature 0 °C to +70 °C
Package PDIP-14 (19.31 x 6.35 x 5.08 mm)

Features

  • Single-supply operation down to 3 V with ground-referenced inputs
  • Output swings to ground without external pull-down resistors
  • Internally frequency compensated for unity-gain stability
  • Quiescent current nearly independent of supply voltage
  • Differential input voltage range equal to supply voltage
  • Next-generation LM324B available with +/-2 mV Vos, 36 V supply, and integrated EMI filter

Applications

  • Sensor signal amplification and conditioning
  • DC gain blocks and active filters
  • Single-supply analog signal processing
  • Comparator applications
  • Battery-powered devices
  • 5 V digital system interfaces

The LM324AN is TI industry-standard quad general-purpose operational amplifier in PDIP-14 package. The A-version offers improved 3mV max input offset voltage (vs 7mV for LM324N). It operates from single 3V-32V or dual +/-1.5V to +/-16V supplies with only 700uA quiescent current. Input common-mode range includes ground, and output swings to ground without pull-down resistors. 1.2MHz GBW and unity-gain stability make it versatile for DC gain, active filters, and signal conditioning.

The LM324A uses bipolar technology with a PNP differential input pair. Input bias current flows out of the IC (~45nA typ), allowing common-mode range to extend 0.3V below ground. The output stage is push-pull but has asymmetric drive: 40mA source vs 20mA sink. Internal frequency compensation ensures unity-gain stability without external components. Quiescent current is nearly independent of supply voltage, ideal for battery operation. Differential input voltage withstands up to supply rails without clamping diodes.

Pin Name Function Description
1 1OUT Op-Amp 1 Output –
2 1IN- Op-Amp 1 Inverting Input –
3 1IN+ Op-Amp 1 Non-inverting Input –
4 VCC Positive Supply 3V~32V
5 2IN+ Op-Amp 2 Non-inverting Input –
6 2IN- Op-Amp 2 Inverting Input –
7 2OUT Op-Amp 2 Output –
8 3OUT Op-Amp 3 Output –
9 3IN- Op-Amp 3 Inverting Input –
10 3IN+ Op-Amp 3 Non-inverting Input –
11 GND/VEE Ground / Negative Supply Ground for single-supply
12 4IN+ Op-Amp 4 Non-inverting Input –
13 4IN- Op-Amp 4 Inverting Input –
14 4OUT Op-Amp 4 Output –
  • Sensor signal amplification and conditioning
  • DC gain blocks
  • Single-supply analog signal processing
  • Active filters
  • Comparator applications
  • Battery-powered devices
  • 5V digital system interfaces
Model Type Notes
LM324B Direct upgrade +/-2mV Vos; 36V; EMI filter; 2kV HBM ESD
LM324AN/NOPB Same part TI lead-free version
LM224A Functional equiv. -25C to +85C extended range
LM124A Functional equiv. -55C to +125C military temp
MCP6004 Functional equiv. Microchip 1.8-6V CMOS; ultra-low Iq
TL074 Functional equiv. TI JFET-input; 13MHz; low noise
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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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