Two-Stage Feedforward Class-AB CMOS OTA for Low-Voltage Filtering Applications(Electronic Circuits)
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概要
- 論文の詳細を見る
A compact OTA suitable for low-voltage active-RC and MOSFET-C filters is presented. The input stage of the OTA utilises the NMOS pseudo-differential amplifier with PMOS active load. The output stage relies upon the dual-mode feed-forward class-AB technique (based on an inverter-type transconductor) with common-mode rejection capability that incurs no penalty on transconductance/bias-current efficiency. Simulation results of a 0.5-V 100-kHz 5th-order Chebyshev filter based on the proposed OTA in a 0.18μm CMOS process indicate SNR and SFDR of 68dB and 63dB (at 50kHz+55kHz) respectively. The filter consumes total power consumption of 60μW.
- 一般社団法人電子情報通信学会の論文
- 2007-12-01
著者
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WORAPISHET Apisak
Mahanakorn Microelectronics Research Centre, Mahanakorn University of Technology
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Khumsat Phanumas
Department Of Electrical Engineering Faculty Of Engineering Prince Of Songkla University
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Worapishet Apisak
Mahanakorn Microelectronic Research Center (mmrc) Mahanakorn University Of Technology
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