Union Semiconductor is a fabless integrated circuit design company, engaged in inventing, designing and marketing high performance linear and mixed-signal integrated circuits (ICs) for uses in a variety of electronic equipment. 

Our products include interface transceivers, voltage translators, supervisory and reset circuits, power supply circuits, analog switches, optical APD, ESD protection ICs and EMI fiters. Union Semiconductor markets over 300 analog ICs for uses in a wide variety of electronic equipment, These include automotive, communication, computers, digital consumer electronics, green energy, industry, instrumentation, networking, portable devices, test equipment.