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Variability of Low Frequency Noise (LFN) and Random Telegraph Noise (RTN) is a main concern in analog CMOS integrated circuits. For instance circuits such as current reference, SRAM, ring oscillators are ultimately limited by noise level and mismatch. In this work, CORNER DOPED devices have been fabricated, measured, and finally compared with standard CMOS technology with particular emphasis on weak...
This paper introduces a low-noise, low-power amplifier for high-impedance sensors. An innovative circuit using an auto-zeroed architecture combined with frequency modulation to reject offset and low-frequency noise is proposed and analysed. Special care was given to avoid broadband noise aliasing and chopping in the signal path, and to minimize both the resulting equivalent input offset voltage and...
This paper presents an analog temperature compensation principle for capacitive sensor interfaces. For this purpose a voltage reference proportional to a reference voltage (VREF) and to relative temperature (??T) has been designed and integrated in a 1??m CMOS process. The achieved temperature measurement precision is better than 0.5??C over an operating range of 100??C.
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