AH-JFET Amplifiers For Low Noise Applications

Abstract

In this contribution we present amplifiersfor low noise applications. They have been designed using only N- and P-channel CMOS-compatible junction field effect transistors (JFET) for biasing, amplification, and switching. Using these components a very low noise amplifier system was integrated which consists of a charge sensitive preamplifier and an SC noise filter. Since all active components in this circuit are made of CMOS-compatible JFET's, the amplifier system is also radiation hardened.