Dual CMOS op-amp for signal conditioning and buffer stages
The ROHM BU7262FVM-TR is a dual-channel CMOS operational amplifier in an 8-MSOP package, designed for general-purpose signal conditioning, active filtering, and buffer applications where rail-to-rail output swing and low supply current matter.
The supply span from 1.8 V minimum to 5.5 V maximum covers the common logic rails without needing a separate analog supply. At the low end, 1.8 V operation suits battery-powered or energy-harvesting nodes where every millivolt of headroom counts. The quiescent current per amplifier is 550 µA, so the dual-channel part draws about 1.1 mA total — low enough for loop-powered 4-20 mA transmitters or portable instruments that run on a coin cell.
CMOS inputs give a 1 pA typical input bias current, which is the main reason to pick this over a bipolar op-amp when your source impedance is high — think photodiode transimpedance stages or high-value resistor dividers. Output drive is rated 12 mA per channel, enough to swing into a 10 kΩ load or drive a modest ADC input without a separate buffer.