1.2 MHz GBW, four channels — what it buys you
Supply current is 1.4 mA for all four amplifiers combined, so per-channel quiescent draw sits around 350 µA — a reasonable trade-off for a design that needs four op-amps in one package without a separate power budget line item.
That is the same die as the LM124 family, not the commercial LM324. The 3 mV input offset voltage (typical) and 20 nA input bias current are stable across the range, which matters when the feedback network assumes a DC accuracy that holds at both temperature extremes.
Supply span: 3 V to 30 V single or split
The LM124DR operates from a single supply as low as 3 V up to 30 V, or from split supplies like ±1.5 V to ±15 V. That wide compliance makes it a drop-in for existing ±15 V industrial designs while also running from a 5 V or 3.3 V rail in newer builds. The output swings within about 1.5 V of each rail under moderate load — not rail-to-rail, but adequate for most ADC driver and comparator applications where the reference is centred.
14-SOIC package and Tape & Reel delivery
Cut Tape quantities are also available for prototyping or low-volume builds.
Active lifecycle, ROHS3 compliant
For a production BOM that requires a military-temperature quad op-amp in a surface-mount SOIC package, this part is a current, factory-supported choice with no near-term end-of-life risk.