Current-sense amplifiers are not a specific brand but a category of electronic components used for measuring current flow in circuits. They are produced by various global semiconductor companies, including Texas Instruments (USA), Analog Devices (USA), STMicroelectronics (Switzerland), and Infineon Technologies (Germany). These amplifiers serve industries like automotive, industrial automation, consumer electronics, and renewable energy. Key products include precision current-sense amplifiers, shunt monitors, and integrated current-measurement ICs, enabling efficient power management and fault detection in applications such as motor control, battery management, and power supplies.