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
噪声整形(noise shaping,NS)SAR ADC 沿用 SAR ADC 的电路结构,结合 Sigma-Delta ADC 的噪声整形 技术,利用 SAR 逻辑控制 DAC 实现反馈和量化等过 程,在兼顾结构简单,功耗较低的同时,仅需要较少 的转换位数就可以达到较高的精度.与另外两种结构 相比,NS-SAR ADC 在精度和能效性上都有一定的优 势,近年来在...
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...
noise-shaping SARredundancydigital error correctionThis paper presents a predictive noise shaping (NS) Successive Approximation (SAR) Analog-to-Digital Converter (ADC), which improves its conversion speed by 25%, compared to its counterpart with 0.3% less redundancy. It begins by investigating the ...
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 2.72fJconv 13b 2MSs SAR ADC Using Dynamic Capacitive Comparator with Wide 11:...
A novel active noise-shaping SAR ADC with on-chip digital DAC calibration is presented. To relax the design of the single op-amp used as an integrator, correlated double sampling (CDS) and correlated level shifting (CLS) were implemented. CDS minimizes the offset of the integrator and reduces...
Yavari, An error-feedback noise-shaping SAR ADC in 90 nm CMOS, Analog Integr. Circuits Signal Process. 81 (3) (2014) 805-814... M Shahghasemi,R Inanlou,M Yavari - 《Analog Integrated Circuits & Signal Processing》 被引量: 0发表: 2014年 A 0.003 mm$^{2}$ 10 b 240 MS/s 0.7 mW...
单通道SAR ADC采样速率90MS/s,4通道时间交织实现360MS/s的采样速率.测试结果表明,该ADC在360MS/s采样速率和33MHz输入信号频率下,测得的信噪失真比(SNDR)和无... 李冬,孙金中 - 《中国集成电路》 被引量: 0发表: 2022年 A 90-MS/s 11-MHz-Bandwidth 62-dB SNDR Noise-Shaping SAR ADC Although charge...
噪声整形(noise shaping,NS)SAR ADC 沿用 SAR ADC 的电路结构,结合 Sigma-Delta ADC 的噪声整形 技术,利用 SAR 逻辑控制 DAC 实现反馈和量化等过 程,在兼顾结构简单,功耗较低的同时,仅需要较少 的转换位数就可以达到较高的精度.与另外两种结构 相比,NS-SAR ADC 在精度和能效性上都有一定的优 势,近年来在...
A multistage comparator using a feed-forward technique can provide noise shaping of conversion errors. For example, the comparator may feed a conversion error forward from a first stage to a next stage of the multistage comparator.doi:US20140266827 A1Jose Luis Ceballos...