Noise optimised charge-sensitive CMOS amplifier for capacitive radiation detectors

A low-voltage, low-noise, charge-sensitive preamplifier (CSA) for particle tracking using a silicon strip detector was designed. The preamplifier was optimised in terms of the total output noise performance using a noise minimisation technique based on the MOSFET noise small signal equivalent circuit and readout front-end noise optimisation criteria valid in the strong inversion region. The preamplifier was designed and fabricated in a 0.35 m CMOS process by Austria Mikro Systeme for a specific silicon strip detector of 2 pF capacitance for X-ray spectroscopy. The circuit exhibits satisfactory performance compatible to the specific low-energy radiation detection application. Particularly, the CSA provides an equivalent noise charge of 254 e + 13.5+e - /pF, consumes 165 muW and achieves an output conversion gain equal to 2.81 mV/fC and a linearity <0.57 . Analysis is supported by extensive measurement results confirming the circuit characteristics and their flexibility to be used in a variety of readout applications.

[1]  Y. Nezer.  A new interpretation of noise reduction by matching , 1974 .

[2]  Gérard Sarrabayrouse,et al.  Analysis and selection criteria of BSIM4 flicker noise simulation models , 2008 .

[3]  Stilianos Siskos,et al.  Comparison between BSIM4.X and HSPICE flicker noise models in NMOS and PMOS transistors in all operating regions , 2007, Microelectron. Reliab..

[4]  J. A. Connelly,et al.  Low noise electronic system design , 1993 .

[5]  Willy M. C. Sansen,et al.  Low-noise wide-band amplifiers in bipolar and CMOS technologies , 1990, The Kluwer international series in engineering and computer science.

[6]  H. Murayama,et al.  A 12-Channel CMOS Preamplifier-Shaper-Discriminator ASIC for APD and Gas Counters , 2006, IEEE Transactions on Nuclear Science.

[7]  Yael Nemirovsky,et al.  CMOS low-noise switched charge sensitive preamplifier for CdTe and CdZnTe X-ray detectors , 1997 .

[8]  S. Tedja,et al.  A CMOS low-noise and low-power charge sampling integrated circuit for capacitive detector/sensor interfaces , 1995, IEEE J. Solid State Circuits.

[9]  L. T. Wurtz,et al.  Design of a high-performance, low-noise charge preamplifier , 1993 .

[10]  Willy Sansen,et al.  Limits of low noise performance of detector readout front ends in CMOS technology , 1990 .

[11]  Jan Kaplon,et al.  Fast CMOS binary front end for silicon strip detectors at LHC experiments , 2005 .

[12]  Yael Nemirovsky,et al.  1/f Noise in CMOS transistors for analog applications from subthreshold to saturation , 1998 .

[13]  Willy Sansen,et al.  Low-noise monolithic amplifier design: Bipolar versus CMOS , 1991 .

[14]  Yael Nemirovsky,et al.  LOW NOISE CMOS READOUT FOR CDZNTE DETECTOR ARRAYS , 1999 .

[15]  E. Mandelli,et al.  A High-Speed Low-Noise 16-Channel CSA With Automatic Leakage Compensation In 0.35-$\mu$m CMOS Process for APD-Based PET Detectors , 2007, IEEE Transactions on Nuclear Science.

[16]  W. W. Moses,et al.  A high-speed low-noise CMOS 16-channel charge-sensitive preamplifier ASIC for APD-based PET detectors , 2002 .

[17]  Y. Netzer,et al.  The design of low-noise amplifiers , 1981, Proceedings of the IEEE.

[18]  Georges Gielen,et al.  A fully integrated low-power CMOS particle detector front-end for space applications , 1998 .

[19]  Marco Sampietro,et al.  Detector embedded device for continuous reset of charge amplifiers: choice between bipolar and MOS transistor , 2000 .

[20]  F. Prino,et al.  RX64DTH - a fully integrated 64-channel ASIC for digital X-ray imaging system with energy window selection , 2004, IEEE Symposium Conference Record Nuclear Science 2004..

[21]  B. Krieger,et al.  PETRIC - A positron emission tomography readout integrated circuit , 2000 .

[22]  Y. Nemirovsky,et al.  1/f noise in CMOS transistors for analog applications , 2001 .

[23]  William Liu,et al.  MOSFET Models for SPICE Simulation: Including BSIM3v3 and BSIM4 , 2001 .

[24]  David A. Johns,et al.  Analog Integrated Circuit Design , 1996 .

[25]  Leonard Forbes,et al.  SPICE models for flicker noise in n-MOSFETs from subthreshold tostrong inversion , 2000, IEEE Trans. Comput. Aided Des. Integr. Circuits Syst..

[26]  Willy Sansen,et al.  Effect of noise on the resolution of CMOS analog readout systems for microstrip and pixel detectors , 1991 .