
A 3.7-mW 12.5-MHz 81-dB SNDR 4th-Order Continuous-Time
Overall, this work achieves 81-dB SNDR over 12.5 MHz with 3.7-mW power, leading to a Schreier FoM of 176 dB. This article presents a hybrid 4th-order delta–sigma modulator (DSM). It combines a continuous-time (CT) loop filter and a discrete-time (DT) passive 2nd-order noise-shaping SAR (NS-SAR).
10.4 A 3.7mW 12.5MHz 81dB-SNDR 4th-Order CTDSM with
10.4 A 3.7mW 12.5MHz 81dB-SNDR 4th-Order CTDSM with Single-OTA and 2nd-Order NS-SAR Abstract: A high-order CTDSM can provide high resolution with a small OSR, but its design suffers from a few challenges.
A 3.1 mW 8b 1.2 GS/s Single-Channel Asynchronous SAR ADC
2013年9月24日 · Abstract: An 8b 1.2 GS/s single-channel Successive Approximation Register (SAR) ADC is implemented in 32 nm CMOS, achieving 39.3 dB SNDR and a Figure-of-Merit (FoM) of 34 fJ per conversion step. High-speed operation is achieved by converting each sample with two alternate comparators clocked asynchronously and a redundant capacitive DAC with ...
传统ADC主要指标:SFDR、SNR、SNDR、ENOB - CSDN博客
2022年6月29日 · SFDR 的定义是基本正弦波信号均方根 (RMS) 值与从 0Hz (DC) 到二分之一数据转换器采样速率(如 fs/2) 范围内测得的输出峰值杂散信号均方根值之比。峰值杂散分量可以是谐波关系,也可以是非谐波关系。SFDR 可以使用下列方程计算:SFDR(dBc)=20lg(Funfame_sndr
(PDF) A 3.7mW 12.5MHz 81dB-SNDR 4th-Order Continuous
2022年1月1日 · Overall, this work achieves 81 dB SNDR over 12.5 MHz with 3.7 mW power, leading to a Schreier FoM of 176 dB.
A 3.7mW 12.5MHz 81dB-SNDR 4th-Order Continuous-time DSM …
Moreover, this work implements both excess loop delay (ELD) compensation and an input feedforward path inside the NS-SAR in the charge domain, further reducing the circuit complexity and the OTA...
一个芯片工程师的ADC学习笔记 (二) - 知乎专栏
sndr是用于衡量数据转换器的动态性能的关键参数之一,它包含奈奎斯特带宽上的所有噪声和杂散。sndr的表达式为: 其中,信号功率是有用信号、噪声和失真分量的平均功率。
10.4 A 3.7mW 12.5MHz 81dB-SNDR 4th-Order CTDSM with ... - 百 …
In [2], a 3<sup>rd</sup>-order DSM is built with only 1 OTA and a 2<sup>nd</sup>-order NS-SAR. Since it is set by device ratios, the NTF of a NS-SAR is PVT-robust. Hence, the 3<sup>rd</sup> order DSM stability is equivalent to that of a 1<sup>st</sup>order CTDSM, which is easy to ensure.
ADC如何量測SNR,SNDR,SFDR,THD - Analog/RFIC討論區
2010年1月12日 · 關於量測ADC的SNR、SNDR以及thd的數據,我都是在hspice中輸入sin波利用暫態取點存成資料,再給matlab來做運算,我也看過利用hspice直接下fft的方式直接求出那些數值,因此兩種方法都可以,只是matlab功能比較多,因此我比較偏向使用matlab來算那些數值,而大 …
A 5.3-μW 80.8-dB SNDR LNA-Embedded EF-CIFF Third-Order
Fabricated in a $180-\mathrm{nm}$ CMOS process, the proposed IC achieves a peak signal-to-noise-and-distortion ratio (SNDR) of 80.8 dB with an OSR of 16 and a 2.5 kHz signal bandwidth (BW), while consuming $5.3 \mu \mathrm{~W}$ from a $1.2-\mathrm{V}$ supply. This results in a Schreier’s figure of merit (FOM) of 167.5 dB.
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