高精度低功耗的Noise-shaping+SAR+ADC设计.pdf,摘要 高精度低功耗的Noise-shaping SAR ADC 设计 模数转换器(ADC )是连接模拟域与数字域的通道,模数转换技术广泛应用 于图像传感、数字通信、测量和信号处理等领域。随着信息技术的发展与移动终 端的普及,模数转换器需兼
论文参考 《A 12b-ENOB 61f-LW Noise-Shaping SAR ADC with a Passive Integrator》 架构思想:利用DAC上的residue voltage,使用噪声整形技术,对量化噪声(包括比较器噪声等)进行整形,实现带内信噪比的提高。 …
9.6 A 118.5dBA DR 3.3mW Audio ADC with a Class-B Resistor DAC, Non-Overlap DEM a 19:42 9.7 A 94.3dB SNDR 184dB FoMs 4th-Order Noise-Shaping SAR ADC with Dynamic-Amplif 17:58 9.8 A 9.3nVrtHz 20b 40MSs 94.2dB DR Signal-Chain Friendly Precision SAR Converte 19:33 9.9 A 2.72...
ADC 芯片向更高 速度,更高精度,更高能效的方向发展.噪声整形(noise-shaping)逐次逼近型(SAR)模数转换器因其电路结构简单,能够在实现 小面积的同时达到较高的转换精度,与低功耗,高精度的应用场景相适应,逐渐成为当前集成电路设计中的研究热点.本文对当前 国内外 noise-shaping SAR ADC 的相关研究进行充分的调研,从...
传统模数转换器难以通过单一架构同时满足高精度,低功耗的要求,近年来,一种新型模数转换器混合架构——噪声整形逐次逼近型模数转换器(Noise-shapingSARADC)结合了逐次逼近型模数转换器(SARADC)与Σ-ΔADC架构的优点,能够同时实现高精度,低功耗的性能.然而凭借混合架构的优势,目前Noise-shapingSARADC的设计一般也难以实现...
As a design example, the proposed noise-shaping SAR ADC is simulated in a 90nm CMOS technology by employing a 3-bit SAR ADC. Simulation results with Spectre-RF shows 11.1-bit effective resolution in 1MHz input bandwidth and 128MHz sampling rate while consuming 208μW power. The achieved ...
Although charge-redistribution successive approximation (SAR) ADCs are highly efficient, comparator noise and other effects limit the most efficient operation to below 10-b ENOB. This work introduces an oversampling, noise-shaping SAR ADC architecture that achieves 10-b ENOB with an 8-b SAR DAC ...
This paper presents a power-efficient 10/12 bit 40 kS/s SAR ADC for sensor applications. It supports resolutions of 10 and 12 bit and sample rates from DC up to 40 kS/s to accommodate a variety of sensor applications. A Data-Driven Noise-Reduction method is introduced to selectively enhan...
S / 28.128.1 A 0.46mW 5MHz-BW 79.7dB-SNDR Noise-Shaping SAR ADC with Dynamic-Amplifier-Based FIR-IIR FilterChun-Cheng Liu, Mu-Chen HuangMediaTek, Hsinchu, TaiwanThe successive approximation register (SAR) ADC is the most energy efficientarchitecture with moderate conversion rate and resolution....