LM324

Texas Instruments
Analog - Operational Amplifiers
Low-power quad operational amplifiers - four independent, high-gain, internally frequency-compensated operational amplifiers designed for single supply operation.

The LM324-N consists of four independent, high-gain, internally frequency-compensated operational amplifiers. These amplifiers were designed specifically to operate from a single power supply over a wide voltage range. Operation from split-power supplies is also possible. The low-power supply current drain is independent of the supply voltage magnitude. Application areas include transducer amplifiers, DC gain blocks, and conventional op-amp circuits, easily implemented in single power supply systems.

LM324-N1OUTPUT12INPUT1-3INPUT1+4V+5INPUT2+6INPUT2-7OUTPUT214OUTPUT413INPUT4-12INPUT4+11GND10INPUT3+9INPUT3-8OUTPUT3
Supply Voltage:
3V - 32V
Package:
14-pin DIP

Key Features

  • Internally frequency compensated for unity gain
  • Large DC voltage gain: 100dB
  • Wide bandwidth: 1MHz (unity gain, temperature compensated)
  • Wide power supply range: 3V to 32V (single supply) or ±1.5V to ±16V (dual supplies)
  • Very low supply current drain: 700µA (essentially independent of supply voltage)
  • Low input biasing current: 45nA (temperature compensated)
  • Low input offset voltage: 2mV and offset current: 5nA
  • Input common-mode voltage range includes ground
  • Differential input voltage range equal to power supply voltage
  • Large output voltage swing: 0V to V+ - 1.5V
  • Can operate directly from standard 5V digital system supply

Applications

  • Transducer amplifiers
  • DC gain blocks
  • Conventional op-amp circuits
  • Signal conditioning
  • Active filters
  • Voltage followers
  • Summing amplifiers
  • Differential amplifiers
  • Instrumentation amplifiers
  • Battery-powered applications

Notes

The input common-mode voltage range includes ground, allowing direct sensing near ground. The output can swing to ground even when operated from a single power supply. Unity gain cross frequency and input bias current are temperature compensated.