Specs side by side
2 parts compared · 14 differing specs across 14 total parameters.
| Parameter | ||
|---|---|---|
| Supply voltage | - | 3V to 36V; same common-mode and output swing characteristics of the family. |
| Memory & Peripherals | - | Quad, unity-gain stable, internally compensated. |
| Case | SOIC-14 / DIP-14 / TSSOP-14 | SOIC-14 / TSSOP-14 |
| Compatibility Level | - | 100% Drop-in (Zero Code Change) |
| Component Category | General-Purpose Operational Amplifiers | - |
| Core & Architecture | - | The B-suffix redesign: supply rating raised to 36V, lower supply current, improved ESD structure, same functional behavior and pinout. |
| Firmware Notes | - | For new stocks and new builds this is the part to standardize on. In legacy circuits it behaves like the original LM324 within the original rail; the extra supply headroom only adds margin. |
| Hardware Notes | - | SOIC-14 / TSSOP-14 pinouts follow the standard quad-op-amp arrangement - confirm against the vendor drawing before SMD placement. |
| Lead Time Advantage | - | Shenzhen Spot Stock (24-48h Dispatch) |
| Market Reality | The LM324 is the default quad op-amp of single-supply design: input common mode includes ground, output swings to near ground, and it runs from a 3V to 32V rail. It is one of the few analog parts in true continuous mass production across TI, ST, onsemi and every second-source fab, so availability is not the problem. The two real issues are picking the right grade for the rail (LM2902 caps at 26V, the B-suffix die at 36V, the LV family at 5.5V) and not treating the similarly-packaged LM339 quad comparator as a substitute - it is a different pinout and a different output stage. | - |
| Reference Part | - | LM324 |
| Role In Circuit | Original Reference Part | - |
| Sourcing Advantage | - | Active TI production; the long-term safe buy for LM324 sockets. |
| Sourcing Status | Active Shenzhen Spot Sourcing (24–48h) | - |