A particle detector fully-programmable interface circuit for satellite applications

Author

Borghetti, F. ; Gobbi, M. ; Fornasari, A. ; Malcovati, P. ; Maloberti, F. ; Pagano, M.

Author_Institution

Dept. of Electr. Eng., Pavia Univ., Italy

Volume

3

fYear

2003

fDate

25-28 May 2003

Abstract

In this paper we propose a fully integrated analog acquisition channel for the new generation of γ-ray detectors. The channel does not include a charge sensitive amplifier (CSA), because the CSA itself is mounted on the detector. This approach relaxes significantly the noise specifications of the channel, but requires the programmability of the most important parameters of the circuit (gain, shaping time, threshold, polarity, pole-zero cancellation) to allow the same analog channel to be connected to many types of detector/CSA pairs. The channel includes also a 10 bit A/D converter and hence provides digital output. The programming of the parameters is performed digitally. The chip, fabricated using a CMOS 0.8 μm technology, consumes 30 mW from a 5 V power supply.

Keywords

CMOS integrated circuits; aerospace instrumentation; analogue-digital conversion; artificial satellites; gamma-ray detection; mixed analogue-digital integrated circuits; programmable circuits; solid scintillation detectors; γ-ray detectors; 0.8 micron; 10 bit; 30 mW; 5 V; A/D converter; ADC; ASIC; CMOS technology; fully-programmable interface circuit; gamma ray detectors; integrated analog acquisition channel; noise specifications; pole-zero cancellation; satellite applications; CMOS technology; Cables; Capacitance; Circuits; Electronic mail; Noise shaping; Photodiodes; Preamplifiers; Radiation detectors; Satellites;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on

Print_ISBN

0-7803-7761-3

Type

conf

DOI

10.1109/ISCAS.2003.1205072

Filename

1205072