Linear Systems is a U.S. designer, manufacturer and seller of precision, high-performance, small-signal discrete semiconductors fabricating all products in Silicon Valley. Founded in 1987, it produces ultra-low-noise, monolithic dual and single JFETs and bipolar transistors, along with high-speed DMOS switches, small-signal MOSFETs, ultra-low leakage diodes and BiFET amplifiers. These parts have been designed into world-class products in the areas of Test Measurement, Audio, Scientific Optical, Military Sensors, Industrial Controls, Hybrids, and more.