Low Power-Consumption OP-Amp Using Adaptive Biasing for Switched Capacitor Circuit

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  • Adaptive Bias回路を用いたスイッチトキャパシタ回路用省電力演算増幅器
  • Adaptive Bias　カイロ　ヲ　モチイタ　スイッチトキャパシタ　カイロヨウ　ショウデンリョク　エンザン　ゾウフクキ

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Abstract

An op-amp implementing an adaptive current biasing depending on the input signal amplitude is proposed for low power switched capacitor circuits operating in weak inversion. The simulation result proves that the proposed op-amp significantly improves the settling time of switched capacitor circuits; approximately ten times faster than that of switched capacitor circuits using a conventional op-amp.

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