The LM324 series are low–cost, quad operational amplifiers with true differential inputs. They have several distinct advantages over standard operational amplifier types in single supply applications. The quad amplifier can operate at supply voltages as low as 3.0 V or as high as 32 V with quiescent currents about one–fifth of those associated with the MC1741 (on a per amplifier basis). The common mode input range includes the negative supply, thereby eliminating the necessity for external biasing components in many applications. The output voltage range also includes the negative power supply voltage.
The LM324 series from ON Semiconductor provides four low‑cost operational amplifiers in a single package. They feature true differential inputs, short‑circuit‑protected outputs, and can operate from a single supply as low as 3.0 V up to 32 V. The common‑mode input range includes the negative supply, eliminating the need for external biasing, and the output voltage range also includes the negative supply voltage.
The datasheet lists detailed electrical characteristics such as input offset voltage, bias currents, power‑supply current, and temperature ranges for each device (LM324, LM324A, LM224, LM2902, LM2902V, NCV2902). Package options include PDIP‑14 and TSSOP‑14 with full dimension tables. Ordering information, device marking, and regulatory notes are also provided.
| Supply Voltage Range | 3.0 V to 32 V |
|---|---|
| Input Bias Current (typical) | 100 nA |
| Output Voltage Range | Includes negative supply voltage |
| Operating Temperature Range | -40 °C to +125 °C (NCV2902) |
The LM324 series can operate from a single supply as low as 3.0 V.
Yes, the NCV2902 device is qualified for automotive use.
The input common‑mode range extends to the negative supply and up to VCC‑1.7 V.