← 返回 JSSC 论文列表JSSC 2009第8期Data Converters0.18μmDelta-Sigma ADC
An 81 mW 82 dB Delta-Sigma ADC With 19 MHz BW and 98 dB THD
一种采用量化噪声耦合技术的15级低失真ΔΣ ADC，在1.9MHz带宽内实现81dB SNDR和98dB THD。
0.18μm CMOS, 1.5V, 19MHz BW, 81dB SNDR, 98dB THD, 8.1mW
ΔΣ ADC低失真ADC量化噪声耦合宽频带应用开关电容
▸采用量化噪声耦合技术实现仅用两个积分器的三阶噪声整形
▸低失真拓扑结构降低环路滤波器线性要求
▸功耗优化架构与电路实现
Abstract
and Gabor C. Temes , Life Fellow, IEEE
Abstract—A switched-capacitor low-distortion 15-level
delta-sigma ADC is described. It achieves third-order noise
shaping with only two integrators by using quantization noise
coupling. Realized in a 0.18
m CMOS technology, it provides
81 dB SNDR, 82 dB dynamic range, and
98 dB THD in a
signal bandwidth of 1.9 MHz. It dissipates 8.1 mW with a 1.5 V
power supply (analog power 4.4 mW, digital power 3.7 mW). Its
figure-of-merit is 0.25 pJ/conversion-step, whic