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Scalony wzmacniacz z przetwarzaniem jako układ odczytowy dla tranzystorowych detektorów THz

Kołaciński C., Obrębski D.

Elektronika : konstrukcje, technologie, zastosowania

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2016

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Vol. 57, nr 8

47--50

PL

Artykuł przedstawia nowatorskie podejście do zagadnienia odczytu sygnałów z tranzystorowych detektorów terahercowych. Zaproponowane rozwiązanie bazuje na idei wzmacniacza z przetwarzaniem, ale zostało udoskonalone i dostosowane na potrzeby wielokanałowego przetwarzania sygnałów. Na początku autorzy krótko charakteryzują promieniowanie terahercowe oraz przedstawiają tranzystorowe detektory THz. Następnie skrótowo opisany jest wzmacniacz z przetwarzaniem oraz jego wielokanałowa, scalona realizacja.

EN

This paper describes the unique approach for FET-based detectors readout. Proposed solution is based on a chopper amplifier concept, enhanced and adapted for multichannel signal processing. At the beginning the terahertz radiation is characterized and the FET-based detectors are introduced. Then, chopper stabilization technique is briefly presented and the multichannel, integrated version of chopper amplifier is described.

2

Design of multichannel readout system for spectral identification of materials

Kołaciński C., Obrębski D., Zbieć M., Zagrajek P.

International Journal of Microelectronics and Computer Science

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2015

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Vol. 6, nr 2

35--42

EN

This paper addresses the work performed on development of the readout circuits for FET-based THz detectors. Ultimately, designed readout system is intended to work within the material identification equipment, which targeted to perform the spectral recognition of samples. At the beginning, the short introduction of the THz detection basics and main applications of the THz spectroscopy are presented. Next, the preceding work on single-channel readout circuit is shortly recalled, with a special emphasis on the last design version featuring selective chopper amplifier. This IC became the basis of the complete readout system addressed in next few sections of this paper. Finally, design of novel integrated circuit is presented, incorporating the multichannel readout circuit dedicated for pixel line.

3

Design of integrated readout circuit for NMOS THZ detectors based on chopper ampliﬁer concept

Kołaciński C, Obrębski D., Zagrajek P.

International Journal of Microelectronics and Computer Science

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2014

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Vol. 5, nr 1

14--24

EN

This paper deals with design of readout circuit dedicated for NMOS-based terahertz detectors. The proposed architecture bases on chopper ampliﬁer and instrumentation ampliﬁer concepts. The main objectives were high gain (max. 100 dB) and proper operation with NMOS-based THz detectors. Three different architectures of measurement ampliﬁer designed for the research project are discussed in this paper. The designed chip was manufactured in AMS C35B4 process (350 nm feature size). Another issue described in this paper is dedicated, non-typical testing environment. At the end a few measurement results are shown.