Abstract

The present paper describes an array of GaAs monolithic front-end amplifiers, to be used in a large number of applications in present and future high-energy physics experimental apparatus. A transimpedance amplifier of 66 dBohm gain for optical data transmission between 0.3 and 1.2 Gbit/s have been realized. Two types of front-end voltage amplifiers for amplification of gas detector discharge pulses are presented too. Fast rise times (less than 200 ps) with 30 dB voltage gain, to amplify the weak charge pulses from gas detectors, have been reached.