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Rail-to-rail input-stage with linearly tunable transconductance

Rail-to-rail input-stage with linearly tunable transconductance

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A new technique for the rail-to-rail input stage is proposed. The proposed technique is based on the master-slave approach of complementary MOS transistor pairs. The input transconductance is linearly tunable over a large range and is almost constant for the rail-to-rail common-mode range. The effectiveness of the proposed technique was verified by simulations using a standard 0.18 µm CMOS process.

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