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摺疊與內插類比數位轉換器設計
Thesis

摺疊與內插類比數位轉換器設計

張登裕
Masters, 國立清華大學, 電子工程研究所
2004

Abstract

摺疊與內插類比數位轉換器 快閃式類比數位轉換器 摺疊式類比數位轉換器 前置放大器 內插技巧 比較器 泡沫錯誤 不穩定錯誤 葛雷碼至二元碼解碼器 D型正反器 位元同步電路 時脈產生器 靜態特性 動態特性 電路佈局 摺疊放大器 Folding and Interpolating A/D Converter Flash A/D Converter Folding A/D Converter Preamplifier Interpolating technique Comparator Bubble Errors Metastability Errors Gray-to-Binary decoder D Flip-Flop Bit-Synchronization Circuit Clock Generator Static Performance Dynamic Performance Circuit Layout Folder Amplifier
In this thesis, an 8-bit folding and interpolating analog-to-digital converter (ADC) that converts at 10 MHz is simulated and implemented in 0.35- m CMOS technology. The digital error correction and the decoder techniques by multiplexer are presented in this thesis. The principle of decoder and error correction technique are also discussed and analyzed in detail. The interpolating technique of preamplifiers reduces the power consumption and area. Also, the digital error correction technique increases the SNDR. As the differential-nonlinearity (DNL) and integral-nonlinearity (INL) are less than 0.5LSB and1LSB respectively, the SNDR is 56 dB for input frequencies up to 4.87MHz at 10Msample/s.The folding and interpolating analog-to-digital converter achieves 7.05 efficient bits for 4.87MHz input at 10 M sample/s and the total power consumption is 235mW with 3.3V supply voltage.

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