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

Volume

11

Issue

4

fYear

2011

fDate

4/1/2011 12:00:00 AM

Firstpage

1040

Lastpage

1045

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;

fLanguage

English

Journal_Title

Sensors Journal, IEEE

Publisher

ieee

ISSN

1530-437X

Type

jour

DOI

10.1109/JSEN.2010.2079327

Filename

5585682