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Krzysztof Achtenberg, Graziella Scandurra, Janusz Mikolajczyk, Carmine Ciofi and Zbigniew Bielecki
This paper presents the design and testing of an ultra-low-noise transimpedance amplifier (TIA) for low-frequency noise measurements on low-impedance (below 1 kO) devices, such as advanced IR photodetectors. When dealing with low-impedance devices, the m...
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Agata Romanova and Vaidotas Barzdenas
The work reports on the development of a detailed noise current model for a low-noise capacitive feedback transimpedance amplifier (TIA) in CMOS. The proposed TIA circuit implements the programmable-gain using an array of discretely controlled feedback c...
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Diaaeldin Abdelrahman, Christopher Williams, Odile Liboiron-Ladouceur and Glenn E. R. Cowan
To mitigate the trade-off between gain and bandwidth of CMOS multistage amplifiers, a receiver front-end (FE) that employs a high-gain narrowband transimpedance amplifier (TIA) followed by an equalizing main amplifier (EMA) is proposed. The EMA provides ...
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Tapas Kumar Paul, Radha Raman Pal
Pág. 262 - 281
This study introduces a third order filter and a third order oscillator configuration. Both the circuits use two voltage difference transconductance amplifiers (VDTAs) and three grounded capacitors. By selecting the input and output terminals properly, c...
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Giansergio Menduni, Angelo Sampaolo, Pietro Patimisco, Marilena Giglio, Stefano Dello Russo, Andrea Zifarelli, Arianna Elefante, Piotr Z. Wieczorek, Tomasz Starecki, Vittorio M. N. Passaro, Frank K. Tittel and Vincenzo Spagnolo
A study of the front-end electronics for quartz tuning forks (QTFs) employed as optoacoustic transducers in quartz-enhanced photoacoustic spectroscopy (QEPAS) sensing is reported. Voltage amplifier-based electronics is proposed as an alternative to the t...
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