New analysis technique of transimpedance amplifiers with cascode structure: application to a DC-2.5 GHz MMIC amplifier

Author

Cadenas, Carlos Crespo ; Martinez, F.P.

Author_Institution

ETSI Telecomunicacion, Univ. Politecnica de Madrid, Spain

fYear

1994

fDate

12-14 Apr 1994

Firstpage

613

Abstract

This paper describes the technique we have employed in the analysis of the cascode structure with resistive feedback used as a transimpedance amplifier and shows a new closed form expression for its frequency response based on the equivalent circuit parameters of the FETs. The predicted transimpedance magnitude, -3 dB bandwidth and ripple are in good agreement with previous simulations. We used this technique for the realization of a DC to 2.5 GHz MMIC amplifier with a transimpedance of 67 dBΩ and a good noise performance

Keywords

MESFET integrated circuits; MMIC amplifiers; UHF amplifiers; equivalent circuits; feedback amplifiers; frequency response; integrated circuit noise; network analysis; wideband amplifiers; 0 to 2.5 GHz; 2.5 GHz; FETs; GaAs; MMIC amplifier; analysis technique; cascode structure; equivalent circuit parameters; frequency response; resistive feedback; transimpedance amplifiers; Bandwidth; Circuit noise; Circuit simulation; Equations; Equivalent circuits; FETs; MMICs; Optical amplifiers; Optical feedback; Optical noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrotechnical Conference, 1994. Proceedings., 7th Mediterranean

Conference_Location

Antalya

Print_ISBN

0-7803-1772-6

Type

conf

DOI

10.1109/MELCON.1994.381016

Filename

381016