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Fluctuation Enhanced Sensing is a well known technique, based on noise measurements, to improve sensitivity and selectivity for chemical/biological sensing. Trans-impedance amplifiers (TIAs) are the natural choice as front-end for the measurement of the low frequency noise (LFN) generated by the sensor. In this work we propose a low-noise TIA topology which allows maintaining a large bandwidth also...
We present, for the first time, Low Frequency Noise measurements in Vertical Organic Transistors. Investigated devices are p-type Metal-Base Organic Transistors employing Pentacene and Copper Phthalocyanine as active layers for the Emitter and Collector regions, respectively. The power spectral densities measured at the Base and Collector terminals follow a 1/fγ law, with γ≈1, suggesting that noise...
In this paper we present an on-wafer measurement system suited for the characterization of low frequency current noise in CMOS devices. Guidelines for designing the preamplifier and the bias stage at the drain and gate terminals are discussed. A simple implementation of the proposed design approach is reported. The system capability is tested through 1/f noise measurements in advanced CMOS devices.
In this paper we present an on-wafer measurement system suited for the characterization of low frequency current noise in CMOS devices. Guidelines for designing the preamplifier and the bias stage at the drain and gate terminals are discussed. A simple implementation of the proposed design approach is reported. The system capability is tested through 1/f noise measurements in advanced CMOS devices
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