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The quality of the output stage is key to the performance of low-noise CMOS preamplifiers for semiconductor detectors, especially when the preamplifier signal is to be transmitted to a remote receiver. This work deals with two implementations of an output-stage circuit architecture particularly suited for low-noise integrated preamplifiers of X and gamma-ray detector signals. The aim is to conjugate...
A class A-B CMOS output stage, conceived for low-noise integrated preamplifiers of X- and gamma-ray detector signals, is proposed. It is based on a negative-feedback loop which stabilizes the working current of the output transistor. As a result we obtained both a low output impedance and a large voltage swing. We realized the output stage in a 5V 0.8mum CMOS technology. The obtained output voltage...
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