Title: Effect of 1/f noise on the resolution of cmos analog readout systems for microstrip and pixel detectors
Authors: Chang, Zy ×
Sansen, Willy #
Issue Date: Aug-1991
Publisher: Elsevier science bv
Series Title: Nuclear instruments & methods in physics research section a-accelerators spectrometers detectors and associated equipment vol:305 issue:3 pages:553-560
Abstract: The noise performance of low-power CMOS analog readout systems for small detector capacitances ranging from 10 fF to 10 pF is analytically studied. Design criteria are given for both charge sensitive amplifiers and semi-Gaussian pulse shapers so as to achieve the theoretical minimal possible ENCs of the systems. The significant effect of I/f noise on the system resolution is determined. It is shown that for low-power readout systems employing a short peaking time (e.g, tau-s < 100 ns), the total system ENC is dominated by the channel thermal noise rather than 1/f noise. Therefore, for these applications, a CMOS approach is preferred to other ones using expensive technologies such as CMOS-JFET [Z.Y. Chang and W. Sansen, Low-Noise Wide-Band Amplifiers in Bipolar and CMOS Technologies (Kluwer, 1990)].
ISSN: 0168-9002
Publication status: published
KU Leuven publication type: IT
Appears in Collections:ESAT - MICAS, Microelectronics and Sensors
× corresponding author
# (joint) last author

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