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High-Precision Interferometric Measurements of Gas Refractive Index Using Homodyne Detection. [PDF]
Sensors (Basel)Miao Y +5 more
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CMOS High-CMRR Current Output Stages
IEEE Transactions on Circuits and Systems II: Express Briefs, 2007Two CMOS current output stages are presented. Compared to the traditional solution, which exhibits unbalanced operation, the proposed ones exploit an auxiliary high-gain feedback loop which provides differential drive, thereby highly improving the common-mode rejection ratio (CMRR).
CENTURELLI, Francesco +4 more
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Current output stage with improved CMRR
10th IEEE International Conference on Electronics, Circuits and Systems, 2003. ICECS 2003. Proceedings of the 2003, 2004A technique to increase the common-mode rejection ratio of traditional current output stage is presented. The solution exploits an auxiliary high-gain feedback loop which also approximately doubles the differential transconductance. SPICE simulations using the model parameters of a 0.8-/spl mu/m CMOS process arc found in remarkable agreement with ...
CENTURELLI, Francesco +2 more
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Fully Differential Class-AB OTA with Improved CMRR
Journal of Circuits, Systems and Computers, 2017This paper presents a fully differential class-AB current mirror OTA that improves the common-mode behavior of a topology that presents very good differential-mode performance but poor common-mode rejection ratio (CMRR). The proposed solution requires a low-current auxiliary circuit driven by the input signal, to compensate the effect of the common ...
CENTURELLI, Francesco +4 more
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Improved wideband, high CMRR instrumentation amplifier
Clinical Physics and Physiological Measurement, 1992A wideband high CMRR instrumentation amplifier is described. Based on a previously reported current-mode design, the improved amplifier features excellent CMRR performance of better than 60 dB up to 200 kHz with unity differential gain.
Q S Zhu, F J Lidgey, M A Vere Hunt
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High CMRR current-feedback operational amplifier
International Journal of Electronics, 2003Despite excellent high frequency and high speed performance, current-feedback operational amplifiers (CFOAs) generally exhibit poor common-mode rejection properties, which limits their utility. In this paper the authors analyse the conventional (CFOA) in terms of common-mode rejection ratio (CMRR) performance, and, having identified the mechanism ...
A. A. Tammam, K. Hayatleh, F. J. Lidgey
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