A 240-channel thick film multi-chip module for readout of silicon drift detectors

Citation
D. Lynn et al., A 240-channel thick film multi-chip module for readout of silicon drift detectors, NUCL INST A, 439(2-3), 2000, pp. 418-426
Citations number
4
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
0168-9002 → ACNP
Volume
439
Issue
2-3
Year of publication
2000
Pages
418 - 426
Database
ISI
SICI code
0168-9002(20000111)439:2-3<418:A2TFMM>2.0.ZU;2-J
Abstract
We have developed a thick film multi-chip module for readout of silicon dri ft (or low capacitance similar to 200 fF) detectors. Main elements of the m odule include a custom 16-channel NPN-BJT preamplifier-shaper (PASA) and a custom 16-channel CMOS Switched Capacitor Array (SCA). The primary design c riteria of the module were the minimizations of the power (12 mW/channel), noise (ENC = 490 e(-) rms), size (20.5 mm x 63 mm), and radiation length (1 .4%). We will discuss various aspects of the PASA design, with emphasis on the preamplifier feedback network. The SCA is a modification of an integrat ed circuit that has been previously described [1]; its design features spec ific to its application in the SVT (Silicon Vertex Tracker in the STAR expe riment at RHIC) will be discussed. The 240-channel multi-chip module is a c ircuit with five metal layers fabricated in thick film technology on a bery llia substrate and contains 35 custom and commercial integrated circuits. I t has been recently integrated with silicon drift detectors in both a proto type system assembly for the SVT and a silicon drift array for the E896 exp eriment at the Alternating Gradient Synchrotron at the Brookhaven National Laboratory. We will discuss features of the module's design and fabrication , report the test results, and emphasize its performance both on the bench and under experimental conditions. (C) 2000 Elsevier Science B.V. All right s reserved.