Low voltage analog readout channel based on gain-boosted amplifiers

Author

Galan, J. ; Lopez-Ahumada, R. ; Sanchez-Rodriguez, Trinidad ; Sanchez-Raya, Manuel ; Pedro, M. ; Jimenez, R.

Author_Institution

Dipt. de Ing. Electron., Sist. Informaticos y Autom., Univ. de Huelva, Huelva, Spain

fYear

2014

fDate

6-8 May 2014

Firstpage

1

Lastpage

6

Abstract

This paper presents a design of a single readout front-end channel for energy spectroscopy. The front-end electronic system comprises a charge sensitive amplifier and a pulse shaping amplifier. Novel techniques based on regulated cascode circuits to increase the gain are proposed. The work addresses the design using transistors with channel length of no more than double the feature size and a supply voltage as low as 1.2 V. The analog system has been designed in a 90 nm technology and optimized to match a detector capacitance of 5 pF. Simulation results confirm the advantages of the proposed approaches in terms of gain, speed, linearity and power consumption.

Keywords

CMOS integrated circuits; low-power electronics; operational amplifiers; particle detectors; readout electronics; capacitance 5 pF; cascode circuits; charge sensitive amplifier; energy spectroscopy; gain boosted amplifiers; low voltage analog readout channel; pulse shaping amplifier; single readout front-end channel; size 90 nm; voltage 1.2 V; Boosting; Capacitance; Detectors; Linearity; Noise; Preamplifiers; Transistors; CMOS submicron technology; analog readout front-end; gain boosting techniques;

fLanguage

English

Publisher

ieee

Conference_Titel

Design & Technology of Integrated Systems In Nanoscale Era (DTIS), 2014 9th IEEE International Conference On

Conference_Location

Santorini

Type

conf

DOI

10.1109/DTIS.2014.6850670

Filename

6850670