半导体学报2007，Vol.28Issue(8)：1204-1210,7.
一种采用斩波稳零技术的16位,96kHz带宽Σ-Δ AD转换器
A 16bit 96kHz Chopper-Stabilized Sigma-Delta ADC
曹楹 1任腾龙 1洪志良1
作者信息
- 1. 复旦大学专用集成电路与系统国家重点实验室,上海,201203
- 折叠
摘要
Abstract
A 16bit sigma-delta audio analog-to-digital converter is developed.It consists of an analog modulator and a digital decimator.A standard 2-order single-loop architecture is employed in the modulator.Chopper stabilization is applied to the first integrator to eliminate the 1/f noise.A low-power,area-efficient decimator is used,which includes a poly-phase comb-filter and a wave-digital-filter.The converter achieves a 92dB dynamic range over the 96kHz audio band.This single chip occupies 2.68mm2 in a 0.18μm six-metal CMOS process and dissipates only 15.5mW power.关键词
Σ-Δ调制/斩波稳零技术/降采样器/多相分解/波数字滤波器/片上噪声Key words
sigma-delta modulation/chopper stabilize/decimator/poly phase/wave digital filter/on-chip noise分类
信息技术与安全科学引用本文复制引用
曹楹,任腾龙,洪志良..一种采用斩波稳零技术的16位,96kHz带宽Σ-Δ AD转换器[J].半导体学报,2007,28(8):1204-1210,7.
