High Speed Operational Amplifiers ROHM High-Speed Operational Amplifiers product line includes high-speed operational amplifiers with dual circuits or quad circuits. These high-speed op-amps feature high gain-bandwidth characteristics (4MHz typical), high slew rates (10V/μs typical), and a wide operating voltage range of 3V to 36V (single power supply) or 1.5V to 18V (dual power supply).