LM324DT Low-Power Quad Op Amp | SOIC-14 General-Purpose Amplifier | STMicroelectronics

LM324DT

Low-power, general-purpose quad operational amplifier supporting single supplies from 3 V to 30 V or dual supplies from ±1.5 V to ±15 V, offering high voltage gain, wide common-mode input range, and low input bias current for cost-effective signal conditioning and analog front-end designs.

Product Description

Product Overview

The LM324DT from STMicroelectronics integrates four independent, internally frequency-compensated high-gain operational amplifiers that can operate from either single or split power supplies.

Its input common-mode voltage range includes ground, which allows low-side signal amplification in single-supply 5 V or 12 V systems without needing a negative rail, making it ideal for cost-sensitive analog circuits.

Packaged in an SOIC-14 (14-SO) outline, it provides a 1.3 MHz gain-bandwidth product and a typical slew rate of 0.4 V/µs, well suited for general buffering, filtering, comparison, and sensor interface applications.

Key Features

Four independent operational amplifiers
Input common-mode voltage range includes ground
Typical supply current
around 1.5 mA (for all four amplifiers)
Typical voltage gain around 100 dB
Gain-bandwidth product of about 1.3 MHz
Typical slew rate around 0.4 V/µs
Low input bias current (typ. 20 nA) and low input offset voltage (typ. 2–5 mV)
Package: SOIC-14 / 14-SO, SMD mounting

Product Applications

Sensor signal conditioning and buffering
Voltage monitoring, threshold and window comparators
Active filters, integrators, and basic analog computing circuits
Power rail current sensing and low-/high-side amplification
Industrial control boards and general-purpose analog front ends
Educational boards, generic analog circuits, and prototyping

Technical Specifications

Parameter	Specification
Number of Amplifiers	4
Supply Voltage	3 V – 30 V single power supply; ±1.5 V – ±15 V dual power supply
Supply Current	≈ 1.5 mA Total
Gain-Bandwidth Product	≈ 1.3 MHz
Slew Rate	≈ 0.4 V/µs
Voltage Gain	≈ 100 dB
Input Bias Current	Typical 20 nA
Input Offset Voltage	Typical 2–5 mV
Package	SOIC-14 (14-SO)
Operating Temp	0°C ~ +70°C

RFQ & Support

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