The ROHM BU7294FV- is a quad CMOS operational amplifier designed for general-purpose signal conditioning, sensor buffering, and active filtering in single-supply systems. Its 2.8 MHz gain-bandwidth product and 3 V/µs slew rate handle audio-band signals and moderate-speed data acquisition channels without excessive power draw — the whole quad draws 2 mA typical supply current. Rail-to-rail output swing lets it drive ADC inputs or downstream stages close to the supply rails, which matters when the supply is as low as 2.4 V.
Package and rework — the 14-LSSOP footprint
Housed in a 14-LSSOP (0.173" body width, 4.40 mm wide), this is a fine-pitch surface-mount package with a 0.65 mm lead pitch. The leads are gull-wing, so lifting the part with hot air is straightforward; the low thermal mass means it reflows cleanly without cooking the adjacent passives. No exposed pad underneath, so you don't need a via stitch for thermal relief.
Supply voltage range and why it matters
The supply span runs from 2.4 V minimum to 5.5 V maximum. That 2.4 V floor is low enough to run from a single lithium cell near end-of-discharge or a 2.5 V regulated rail. The 5.5 V ceiling matches standard 5 V logic and analog supplies, so you can drop this into a 5 V system without needing a separate regulator. The CMOS input stage draws only 1 pA typical input bias current, which keeps offset errors negligible when working with high-impedance sensors or long traces.
It is ROHS3 compliant.