下位ビットから変換する演算増幅器利得誤差補償SC循環型D/A変換器
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概要
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In this paper, we propose a switched-capacitor (SC) cyclic digital-to-analog converter (DAC) which compensate for the gain error and the offset voltage of operational amplifier (op-amp). The DAC convert from least significant bit (LSB). Even when the gain of op-amp is poor, compensated circuit can keep up a resolution. Circuit operation is evaluated on SIMetrix. An error analysis presented that shows an accuracy greater than 8-bits, where amplifier gain is 60 dB.
- 2011-07-30
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