Title :
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
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;
Conference_Titel :
Electronics, Circuits and Systems, 2002. 9th International Conference on
Print_ISBN :
0-7803-7596-3
DOI :
10.1109/ICECS.2002.1045379
