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A SWITCHED-OPAMP TECHNIQUE FOR LOW-VOLTAGE SWITCHED-CAPACITOR CIRCUITS
A SWITCHED-OPAMP TECHNIQUE FOR LOW-VOLTAGE SWITCHED-CAPACITOR CIRCUITS
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机译:低电压开关电容器电路的开关运算技术
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摘要
A switched capacitor circuit is described that uses two switchable operational amplifiers (A1, A1') that operate in parallel and in alternate clock phases (phi1 and phi2). In a preferred embodiment of the invention, the two operational amplifiers may be implemented by a single two stage operational amplifier having a common input stage and two switchable output pairs (Vout 1 and Vout 2). The novel switched capacitor circuit may be used in any application that uses a conventional switched capacitor circuit, such as an integrator and a filter means.
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