The MAX4380EXT is a single voltage-feedback op-amp from Maxim, built for applications that need wide bandwidth and fast slew rate in a tiny footprint. The -3 dB bandwidth of 210 MHz and slew rate of 485 V/µs place it squarely in the high-speed category — think video line drivers, ADC front-end buffers, or pulse-processing stages where settling time and slew-induced distortion matter. The rail-to-rail output lets it swing close to the supply rails without clipping, which is useful in single-supply designs where you need the full output dynamic range. Supply span runs from 4.5 V to 11 V, so it works on 5 V or 9 V rails but won't tolerate a 3.3 V supply — that's a constraint to check against your power budget. The SC-70-6 package is about 2 mm × 2 mm, so board space is minimal, but the fine pitch means your PCB assembly partner needs to be comfortable with small passive-compatible footprints.
SC-70-6 — the footprint reality
The supplier device package is SC-70-6, a 6-lead surface-mount package roughly 2.1 mm × 2.0 mm with 0.65 mm pitch. It's a common footprint shared with many small-signal transistors and logic gates, so layout libraries usually have it. The tiny size helps in dense boards but demands careful soldering — reflow profile per the datasheet, and MSL level should be verified from the lot date code. No special thermal management needed at the 75 mA output current in this package, but the junction-to-ambient thermal resistance is higher than a larger SOIC, so keep the ambient below 85°C and avoid continuous short-circuit conditions.