A single channel, 6-bit 230-MS/s asynchronous SAR ADC based on 2 bits/stage

A single channel, 6-bit 230-MS/s asynchronous SAR ADC based on 2 bits/stage
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基于 2 位/级的单通道 6 位 230MS/s 异步 SAR ADC

DOI:
10.1088/1674-4926/35/7/075005
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发表时间:
2014-07
期刊:
半导体学报
影响因子:
--
通讯作者:
Wang Hui
Wang Hui
中科院分区:
其他
文献类型:
--
作者:
Han Xue;Wei Qi;Yang Huazhong;Wang Hui

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本文提出了一种基于SMIC 65 nm CMOS工艺的单通道、6位、230 MS/s异步逐次逼近寄存器模数转换器(ADC)。通过采用改进的2位/级异步控制逻辑,该ADC在230 MS/s采样率下实现了峰值40.90 dB的无杂散动态范围和29.05 dB的信噪比和失真比。利用动态比较器的无源放大器,这项工作实现了低功耗设计,只有0.93 mW的功耗,并完成了一个174.67 fJ/步在1 V电源电压的优点。
This paper proposes a single channel, 6-bit 230-MS/s asynchronous successive approximation register analog-to-digital converter (ADC) in an SMIC 65 nm CMOS technology. Through adopting the modified 2 bits/stage asynchronous control logic, the presented ADC actualizes a peak 40.90-dB spurious-free dynamic range and 29.05-dB signal-to-noise and distortion ratio at 230-MS/s sampling rate. Utilizing the dynamic comparator without the preamplifier, this work attains low-power design with only 0.93 mW power consumption and accomplishes a figure of merit of 174.67 fJ/step at 1 V supply voltage.
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