Title :
A Low-Power CMOS Instrumentation Chain for Microchannel Plates in Astrophysics
Author :
Bouyjou, F. ; Bernal, O. ; Tap-Béteille, H. ; Sauvaud, J.A.
Author_Institution :
Inst. Nat. Polythechnique de Toulouse, ENSEEIHT, Toulouse, France
fDate :
4/1/2011 12:00:00 AM
Abstract :
A CMOS instrumentation chain for electron and charged particle detection has been optimized for low-noise, low-power consumption and high-speed response. Using a standard 0.35 μm CMOS process, the total active area occupies 0.77 mm2. This analog front-end readout circuit has a pulse time response of 55 ns. The equivalent input referred noise charge of this instrumentation chain is approximately 954e- for a conversion gain of 0.9 mV/fC and power consumption is 1.73 mW. The charge conversion dynamic range is 79 dB and it is possible to convert charges up to 1.5 pC for counting applications. This circuit has a maximum repetitive pulse rate of 2.6 MHz.
Keywords :
CMOS analogue integrated circuits; astronomical instruments; circuit optimisation; electron detection; low-power electronics; microchannel plates; particle detectors; preamplifiers; readout electronics; analog front-end readout circuit; astrophysics; charge conversion; charge preamplifier; charged particle detection; electron detection; low-power CMOS instrumentation chain; low-power consumption; microchannel plate; pulse time response; size 0.35 mum; CMOS; Charge preamplifier; microchannel plate; pulse shaper;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2010.2079327
