Lo T. 1V CMOS Gm-C Filters. Design and Applications 2009

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There are growing demands for low-voltage circuits and systems, especially for system-on-a-chip applications. When switched to low supply voltage, digital circuits do not suffer the degradation in performance. On the other hand, the circuit performance of analog circuits are strongly affected by reduced supply voltage. In addition, chip area should also be taken into consideration to reduce the cost of advanced multi-function SOC design. Therefore, there is urgent need to develop new design techniques for analog circuits at 1-V supply