High Side Current Sensing

摘要

One of the most common tasks in analog circuit design is measuring current. A current sense circuit often resides at the heart of power and battery-life management, bias current control, load monitoring, fuse monitoring, fail safe circuitry and instrumentation. The constraints, demands and ever-expanding list of applications constantly push the state of the art in current sensing. This article describes the advantages of high side current sensing, and spotlights new amplifiers for this application.