A fast 0.25um CMOS current-mode front-end stage for solid state detector interfaces

Author

Zervakis, E. ; Haralabidis, N.

Author_Institution

Microelectron. Circuit Design Group, Nat. Tech. Univ. of Athens, Greece

Volume

1

fYear

2002

fDate

2002

Firstpage

243

Abstract

An 8-channel preamplifier has been designed in 0.25um CMOS technology for use in solid state detectors systems. The preamplifier is a current-mode circuit providing the ability for high speed and low power consumption. The operation of the preamplifier is optimized for detectors with large capacitance of 45pF. It has differential output and the baseline can be externally adjusted. A self-adjustable circuit for compensating the leakage current of the detector is also included. The dynamic range of the front-end stage is very large from 150fC to 1500fC. With power consumption 2.5mW, the peaking time was measured around 25ns while the gain 0.3mV/fC.

Keywords

CMOS integrated circuits; current-mode circuits; high-speed integrated circuits; leakage currents; low-power electronics; preamplifiers; readout electronics; semiconductor counters; 0.25 micron; 2.5 mW; 25 ns; 45 pF; CMOS technology; capacitance; current-mode circuit; dynamic range; front-end stage; gain; high-speed low-power circuit; leakage current compensation; multi-channel preamplifier; peaking time; power consumption; readout electronics; self-adjustable circuit; solid-state detector interface; CMOS technology; Capacitance; Current mode circuits; Detectors; Dynamic range; Energy consumption; Leak detection; Leakage current; Preamplifiers; Solid state circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2002. 9th International Conference on

Print_ISBN

0-7803-7596-3

Type

conf

DOI

10.1109/ICECS.2002.1045379

Filename

1045379