High-speed op amps (operational amplifiers) are not a specific brand but a category of electronic components designed for fast signal processing. They are produced by various companies worldwide, including Texas Instruments (USA), Analog Devices (USA), STMicroelectronics (Switzerland), and Infineon Technologies (Germany). These components are critical in industries such as telecommunications, medical devices, automotive systems, and industrial automation, where high-speed signal amplification and precision are required. Key products include voltage-feedback op amps, current-feedback op amps, and fully differential amplifiers, often used in data converters, oscilloscopes, and RF applications.