The structure and circuits of high resolution adc ’ s modulator which applied in audio signal range with 20khz base band and 16 bits resolution have been researched 本文對(duì)一種適用于音頻信號(hào)范圍的高精度模/數(shù)轉(zhuǎn)換器的調(diào)制器部分進(jìn)行了結(jié)構(gòu)和電路研究,基帶頻率20khz ,精度16位。