LM124/LM224/LM324/LM2902 is a low power quad operational amplifier designed to operate from a single power supply or split power supplies. It has features such as wide input common-mode voltage range and the ability to swing the output voltage to ground. It is suitable for transducer amplifiers, DC gain blocks, and conventional op amp circuits.
The LM124 series consists of four independent, high‑gain, internally frequency‑compensated operational amplifiers designed for single‑supply operation over a wide voltage range. They can also operate from split supplies and feature low power consumption that is largely independent of supply voltage.
Key specifications include a single‑supply range of 3 V to 32 V, very low supply current (≈700 µA), low input bias current (45 nA), low offset voltage (2 mV), and output swing to ground. The document also provides connection diagrams, absolute maximum ratings, electrical characteristics, typical performance curves, application hints, and physical dimensions for the various package options.
| Supply voltage (single) | 3 V to 32 V |
|---|---|
| Supply voltage (dual) | +1.5 V to +16 V |
| Supply current (typical) | ≈700 µA |
| Input bias current | 45 nA |
| Input offset voltage | 2 mV |
| Output voltage swing | OV to V* – 1.5 V |
| Maximum output short‑circuit current | ≈40 mA |
The supply current drain is about 700 µA and is essentially independent of the supply voltage.
The input bias current is specified as 45 nA (temperature compensated).
They operate from a single supply of 3 V to 32 V, or from dual supplies of +1.5 V to +16 V.
The maximum short‑circuit current is approximately 40 mA per amplifier.