← 返回 JSSC 论文列表JSSC 2009第3期RF & Wireless0.25μm CMOSDelta-Sigma ADC
A 27 mW 903 dB DR Continuous-Time Quadrature Bandpass Sigma-Delta Modulator for
一款用于GSM/EDGE低中频接收机的低功耗连续时间正交带通ΣΔ调制器
27 mW功耗, 90.3 dB动态范围, 86.8 dB峰值SNDR, 1.8V电源电压
正交带通ΣΔ调制器多相滤波器连续时间电路电容前馈求和低功耗设计
▸采用多相滤波器补偿方案
▸基于加权电容前馈求和（CICFF）拓扑结构
▸无需额外有源组件的前馈信号求和实现
Abstract
-Bok Kim, Stefan Joeres, Ralf Wunderlich, and Stefan Heinen , Fellow, IEEE
Abstract—Quadrature bandpass /6/1 modulators based on
polyphase filters are suited for analog-to-digital conversion in
GSM/EDGE low-IF receivers. This paper presents a contin-
uous-time quadrature bandpass sigma-delta
/40/6/1/41modulator
with a chain of integrators with weighted capacitive feedforward
summation (CICFF) topology—which is a desirable solution for
implementation in low power applications. A new compensation
s