LM324 Low Power Quad Op Amp SOIC-14

LM324 Low Power Quad Operational Amplifier (SOIC-14) delivers four independent, high-gain, internally frequency-compensated op amps in a single package. Designers use it for active filters, signal conditioning, voltage followers, and general-purpose amplification while saving board space and power.

Key Features:

• Quad Amplifiers: Integrates four op amps in one SOIC-14 package for compact designs.
• Low Power Consumption: Operates with minimal quiescent current, ideal for battery-powered applications.
• Wide Supply Range: Functions on single supply from 3 V to 32 V or dual supply ±1.5 V to ±16 V.
• Internally Compensated: Provides stable operation without external frequency compensation.
• Unity-Gain Stable: Maintains reliable performance at all gain levels.
• Low Input Bias Current: Reduces error in high-impedance circuits.

Technical Specifications:

• Number of Amplifiers: 4 (quad op amps)
• Supply Voltage Range: 3 V to 32 V (single supply) or ±1.5 V to ±16 V (dual supply)
• Input Offset Voltage: Typical 2 mV, max 7 mV
• Input Bias Current: Typical 45 nA
• Gain Bandwidth Product: ~1 MHz
• Slew Rate: 0.5 V/µs typical
• Output Voltage Swing: 0 V to (Vcc − 1.5 V)
• Operating Temperature Range: −40 °C to +85 °C (commercial grade)

Mechanical Specifications:

• Package Type: SOIC-14 (Surface Mount)
• Lead Finish: Tin-plated leads for solder reliability
• Body Material: Molded epoxy resin
• Mounting Style: Surface mount technology (SMT)

Dimensions:

• Package Width: ~3.9 mm (body)
• Package Length: ~8.65 mm (body)
• Lead Pitch: 1.27 mm
• Package Height: ~1.75 mm

Pinout and Wiring:

• Pin 1: Output 1
• Pin 2: Inverting Input 1
• Pin 3: Non-Inverting Input 1
• Pin 4: Vcc+ (positive supply)
• Pin 5: Non-Inverting Input 2
• Pin 6: Inverting Input 2
• Pin 7: Output 2
• Pin 8: Output 3
• Pin 9: Inverting Input 3
• Pin 10: Non-Inverting Input 3
• Pin 11: Vcc− (negative supply or ground in single supply)
• Pin 12: Non-Inverting Input 4
• Pin 13: Inverting Input 4
• Pin 14: Output 4

Datasheet Reference:

• Access the official LM324 datasheet from Texas Instruments, STMicroelectronics, or ON Semiconductor for full specifications, electrical characteristics, and application examples.

Applications:

• Active Filters: Design low-pass, high-pass, and band-pass filters with ease.
• Signal Conditioning: Use for buffering, scaling, and amplifying sensor signals.
• Comparator Circuits: Implement basic voltage comparators and threshold detectors.
• Voltage Followers: Configure unity-gain buffers for impedance matching.
• General-Purpose Amplification: Apply in instrumentation, control systems, and audio circuits.

Equivalent Models:

• LM324N: DIP-14 version for through-hole mounting
• LM324DT: SOIC variant by STMicroelectronics
• LM324DR: Tape and reel SOIC-14 package
• TLC274: Low-power CMOS alternative with similar pinout

Package Includes:

• 1 x LM324 Low Power Quad Operational Amplifier (SOIC-14)