An SC infinite impulse response (IIR) filter with rail-to-rail output swing has been designed using CMOS technology. The filter uses switched operational amplifiers instead of MOS switches to independently optimize the output swing and switch operation at the minimum theoretical supply voltage. It also features a two-stage topology that turns on and off only the output stage and maintains the charge stored in the Miller capacitance. The performance of the device is discussed together with its structure
Baschirotto, A., Castello, R. (1997). A 1 V 1.8 MHz CMOS switched-opamp SC filter with rail-to-rail output swing. In Proceedings of the 1997 IEEE International Solid-State Circuits Conference, ISSCC; San Francisco, CA, USA; ; 6 February 1997 through 8 February 1997 (pp.58-59) [10.1109/ISSCC.1997.585260].
A 1 V 1.8 MHz CMOS switched-opamp SC filter with rail-to-rail output swing
BASCHIROTTO, ANDREA;
1997
Abstract
An SC infinite impulse response (IIR) filter with rail-to-rail output swing has been designed using CMOS technology. The filter uses switched operational amplifiers instead of MOS switches to independently optimize the output swing and switch operation at the minimum theoretical supply voltage. It also features a two-stage topology that turns on and off only the output stage and maintains the charge stored in the Miller capacitance. The performance of the device is discussed together with its structure
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