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Calogic LLC – Active Components

Calogic Logo
Calogic offers standard products, special selected, assembled and custom type products. Primary technologies include unique, high speed Dielectrically Isolated designs with surface mount packaging to introduce wideband, high slew rate buffers; a wide variety of discrete capabilities that include high speed lateral DMOS, low on resistance vertical DMOS switches, low noise, low leakage JFETs and high impedance MOSFETs that are excellent building blocks for today’s applications such as D to A converters, choppers, analog switches, buffers, amplifiers, automatic gain control, relay circuitry, etc.

Calogic is a manufacturer of analog Ics and discrete for automotive, aerospace, military and medical applications. Products include analog switches, current limiting diodes, MOSFETs, arrays, MOSFET drivers, and high frequency amplifiers. Calogic specializes in analog semiconductor design, processing, and manufacturing. They offer a line of standard products in BiPolar, CMOS, DMOS, JFET and Dielectrically isolated technologies, as well as full Custom IC capabilities from design to final test. Calogic builds to the highest quality product at the lowest overall cost. Special packaging and testing is available to meet specific customer needs.

Calogic products


  • DMOS Switches
  • JFET Switches
  • JFET Amplifiers
  • JFET Diodes


  • Buffers and Amplifiers
  • Power Management

In 1999, Analog integrated circuit manufacturer Calogic of Fremont became a wholly owned subsidiary of SIPEX Corp. of Billerica, Mass. Calogic made analog chips and other products, continued to operate the Fremont facility and will manufacturer chips for customers.

Calogic, LLC was formed in March 2001 to purchase certain assets of the former Calogic Corporation located in Fremont from Sipex Corporation. Calogic has retained the intellectual property and full rights to the processes of the JFET, DMOS, CMOS and Dielectrically Isolated technologies products. The company continues to operate out of the Fremont location and provide the highest quality and most reliable products which have been manufactured, assembled and tested by the Calogic Team over the past 35 years.