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LM324

ACTIVE

Quad 30-V 1.2-MHz operational amplifier

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Data sheet

A newer version of this product is available

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Drop-in replacement with upgraded functionality to the compared device
LM324B ACTIVE Quad, 36V 1.2MHz 3mV offset voltage operational amplifier Drop-in upgrade with improved performance, wider temperature range and lower 1ku price
LM324LV ACTIVE Quad, 5.5-V, 1-MHz, 3-mV offset voltage operational amplifier Faster slew rate (1.5 V/μs), lower offset voltage (3 mV), lower power (0.09 mA), wider temp range (-40 to 125 °C)

LM324

ACTIVE
Data sheet Order now

Product details

Number of channels 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 30 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3 Rail-to-rail In to V- GBW (typ) (MHz) 1.2 Slew rate (typ) (V/µs) 0.5 Vos (offset voltage at 25°C) (max) (mV) 7 Iq per channel (typ) (mA) 0.175 Vn at 1 kHz (typ) (nV√Hz) 35 Rating Catalog Operating temperature range (°C) 0 to 70 Features Standard Amps Input bias current (max) (pA) 250000 CMRR (typ) (dB) 80 Iout (typ) (A) 0.04 Architecture Bipolar Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) -1.5 Output swing headroom (to negative supply) (typ) (V) 0.005 Output swing headroom (to positive supply) (typ) (V) -2
Number of channels 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 30 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3 Rail-to-rail In to V- GBW (typ) (MHz) 1.2 Slew rate (typ) (V/µs) 0.5 Vos (offset voltage at 25°C) (max) (mV) 7 Iq per channel (typ) (mA) 0.175 Vn at 1 kHz (typ) (nV√Hz) 35 Rating Catalog Operating temperature range (°C) 0 to 70 Features Standard Amps Input bias current (max) (pA) 250000 CMRR (typ) (dB) 80 Iout (typ) (A) 0.04 Architecture Bipolar Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) -1.5 Output swing headroom (to negative supply) (typ) (V) 0.005 Output swing headroom (to positive supply) (typ) (V) -2
PDIP (N) 14 181.42 mm² 19.3 x 9.4 SOIC (D) 14 51.9 mm² 8.65 x 6 SOP (NS) 14 79.56 mm² 10.2 x 7.8 TSSOP (PW) 14 32 mm² 5 x 6.4
  • New LM324B and LM2902B
  • B versions are drop-in replacements for all versions of LM224, LM324, and LM2902
  • Improved specifications of B version
    • Supply range: 3V to 36V (B, BA versions)
    • Low input offset voltage: ±2mV (BA version) / 3mV (B version)
    • ESD rating: 2kV (HBM), 1.5kV (CDM)
    • EMI rejection: integrated RF and EMI filter
    • Low input bias current: 50nA maximum (across –40°C to 125°C)
  • Common-mode input voltage range includes V–
  • Input voltage differential can be driven up to supply voltage
  • For dual B versions, see LM358B and LM2904B
  • New LM324B and LM2902B
  • B versions are drop-in replacements for all versions of LM224, LM324, and LM2902
  • Improved specifications of B version
    • Supply range: 3V to 36V (B, BA versions)
    • Low input offset voltage: ±2mV (BA version) / 3mV (B version)
    • ESD rating: 2kV (HBM), 1.5kV (CDM)
    • EMI rejection: integrated RF and EMI filter
    • Low input bias current: 50nA maximum (across –40°C to 125°C)
  • Common-mode input voltage range includes V–
  • Input voltage differential can be driven up to supply voltage
  • For dual B versions, see LM358B and LM2904B

The LM324B and LM2902B devices are the next-generation versions of the industry-standard operational amplifiers (op amps) LM324 and LM2902, which include four high-voltage (36V) op amps. These devices provide outstanding value for cost-sensitive applications,

with features including low offset (600µV, typical), common-mode input range to ground, and high differential input voltage capability.

The LM324B and LM2902B are unity-gain stable and achieve a low offset voltage maximum of 3mV (2mV maximum for LM324BA and LM2902BA) and quiescent current of 240µA per amplifier (typical). High ESD (2kV HBM and 1.5kV CDM) and integrated EMI and RF filters enable the LM324B and LM2902B devices to be used in the most rugged, environmentally challenging applications.

The LM324B and LM2902B can drop-in replace all versions of the LM224, LM324, and LM2902 devices.

The LM324B and LM2902B devices are the next-generation versions of the industry-standard operational amplifiers (op amps) LM324 and LM2902, which include four high-voltage (36V) op amps. These devices provide outstanding value for cost-sensitive applications,

with features including low offset (600µV, typical), common-mode input range to ground, and high differential input voltage capability.

The LM324B and LM2902B are unity-gain stable and achieve a low offset voltage maximum of 3mV (2mV maximum for LM324BA and LM2902BA) and quiescent current of 240µA per amplifier (typical). High ESD (2kV HBM and 1.5kV CDM) and integrated EMI and RF filters enable the LM324B and LM2902B devices to be used in the most rugged, environmentally challenging applications.

The LM324B and LM2902B can drop-in replace all versions of the LM224, LM324, and LM2902 devices.
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Technical documentation

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Type Title Date
* Data sheet LMx24, LMx24x, LMx24xx, LM2902, LM2902x, LM2902xx, LM2902xxx Quadruple Operational Amplifiers datasheet (Rev. AC) PDF | HTML 05 Mar 2024
Application note Application Design Guidelines for LM324 and LM358 Devices (Rev. B) PDF | HTML 19 Jul 2023
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
Application note AN-256 Circuitry for Inexpensive Relative Humidity Measurement (Rev. B) 06 May 2013
Application note AN-260 A 20-Bit (1 ppm) Linear Slope-Integrating A/D Converter (Rev. B) 05 May 2013
Application note AN-30 Log Converters (Rev. B) 01 May 2013
Application note AN-79 IC Preamplifier Challenges Choppers on Drift (Rev. B) 01 May 2013
Application note AN-278 Designing with a New Super Fast Dual Norton Amplifier (Rev. B) 23 Apr 2013
Application note AN-263 Sine Wave Generation Techniques (Rev. C) 22 Apr 2013
Application note Audio Applications of Linear Integrated Circuits 02 May 2004

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

AMP-PDK-EVM — Amplifier performance development kit evaluation module

The amplifier performance development kit (PDK) is an evaluation module (EVM) kit to test common operational amplifier (op amp) parameters and is compatible with most op amps and comparators. The EVM kit offers a main board with several socketed daughtercard options to fit package needs, allowing (...)

User guide: PDF | HTML
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Simulation model

LMx24, LM2902 PSpice Model (Rev. D)

SGLM009D.ZIP (21 KB) - PSpice Model
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Simulation model

LMx24_LM2902 Reference Design

SGLM036.ZIP (22 KB) - TINA-TI Reference Design
Download
Simulation model

LMx24_LM2902 TINA-TI Macro

SGLM037.ZIP (4 KB) - TINA-TI Spice Model
Download
Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
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Design tool

CIRCUIT060013 — Inverting amplifier with T-network feedback circuit

This design inverts the input signal, VIN, and applies a signal gain of 1000 V/V or 60 dB. The inverting amplifier with T-feedback network can be used to obtain a high gain without a small value for R4 or very large values for the feedback resistors.
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Design tool

CIRCUIT060015 — Adjustable reference voltage circuit

This circuit combines an inverting and non-inverting amplifier to make a reference voltage adjustable from the negative of the input voltage up to the input voltage. Gain can be added to increase the maximum negative reference level.
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Design tool

CIRCUIT060074 — High-side current sensing with comparator circuit

This high-side, current sensing solution uses one comparator with a rail-to-rail input common mode range to create an over-current alert (OC-Alert) signal at the comparator output (COMP OUT) if the load current rises above 1 A. The OC-Alert signal in this implementation is active low. So when the (...)
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
User guide: PDF
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Reference designs

PMP22083 — Single-stage AC/DC LCC resonant converter reference design

This reference design provides up to 265-W constant voltage and constant current output from a 120-VAC input with a single-stage LCC resonant converter stage. The BOM-cost of this design is highly optimized with the single-stage structure and use of the driver-integrated LLC resonant controller (...)
Test report: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
PDIP (N) 14 Ultra Librarian
SOIC (D) 14 Ultra Librarian
SOP (NS) 14 Ultra Librarian
TSSOP (PW) 14 Ultra Librarian
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Ordering & quality

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