LM324DR – Quad Operational Amplifier IC, 3V–32V, SOIC‑14 Surface‑Mount (General‑Purpose Op‑Amp)

Key features:

  • Quad operational amplifier (4 channels)
  • Wide supply voltage range: 3V to 32V
  • Single or dual supply operation
  • Low power consumption
  • Common‑mode input includes ground
  • SOIC‑14 surface‑mount package
  • Stable at unity gain

 

The LM324DR is a widely used quad operational amplifier IC that integrates four independent, high‑gain op‑amps in a single package. Designed for general‑purpose analog applications, it supports single or dual power supplies and operates over a wide voltage range.

Features:

  • Four Independent Operational Amplifiers – High‑gain, internally frequency‑compensated op‑amps in one IC
  • Wide Operating Voltage Range (3V–32V Single Supply) – Supports both single and split supply configurations
  • Low Supply Current – Suitable for low‑power and battery‑operated applications
  • Ground‑Sensing Input Capability – Input common‑mode voltage range includes ground
  • Internally Frequency Compensated – Ensures stable operation without external compensation components
  • Gain Bandwidth (typ. 1 MHz) – Reliable performance for signal amplification and filtering
  • Low Input Offset Voltage – Improved accuracy for sensor and measurement circuits
  • Short‑Circuit Protected Outputs – Enhanced reliability in circuit design
  • Wide Operating Temperature Range – Suitable for commercial and industrial applications
  • SOIC‑14 (D) Surface‑Mount Package – Ideal for compact PCB layouts and automated assembly
  • RoHS Compliant – Meets environmental and global compliance standards

Parameters

Parameters
Specifications
Manufacturer
Texas Instruments (or equivalent)
Part Number
LM324DR
Amplifier Type
Quad General‑Purpose Operational Amplifier
Number of Channels
4
Package
SOIC‑14 (D)
Mounting Type
Surface Mount (SMD)
Supply Voltage (Single)
3V to 32V
Supply Voltage (Dual)
±1.5V to ±16V
Gain Bandwidth (Typ.)
1 MHz
Slew Rate (Typ.)
0.3 V/µs
Input Offset Voltage (Typ.)
2 mV
Input Bias Current (Typ.)
20 nA
Output Current (Typ.)
20 mA
Common‑Mode Input Range
Includes Ground
Operating Temperature Range
0°C to +70°C (Commercial Grade)
Operating Supply Current (Typ.)
0.7 mA per amplifier
Output Short‑Circuit Protection
Yes
RoHS Status
RoHS Compliant

Applications

The LM324DR is commonly used in:

  • Power supply units
  • Motor control systems
  • AC inverters and UPS systems
  • Industrial automation equipment
  • Consumer appliances (washers, refrigerators, air conditioners)
  • Signal conditioning and sensor interfaces
  • Active filter circuits
  • Embedded and control systems
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