| Manufacturer | Part Number | Description |
|---|---|---|
| LM324N | Quad Operational Amplifier | |
Texas Instruments |
LM324N | Quadruple Operational Amplifier |
Motorola Semiconductor (now NXP Semiconductors) |
LM324N | Quad Low Power Operational Amplifier |
HTC KOREA |
LM324N | Quad Operational Amplifiers |
| LM324N | Single Supply Quad Operational Amplifier |