Optimized Split Capacitive Array in 16-Bit SAR ADC with Redundancy

hardmany

Fan, H., Lei, P., Feng, Q. et al. Optimized Split Capacitive Array in 16-Bit SAR ADC with Redundancy. Circuits Syst Signal Process (2022). https://doi.org/10.1007/s00034-022-01955-2

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• Received: 08 September 2021
  
• Revised: 29 December 2021
  
• Accepted: 30 December 2021
  
• Published: 30 January 2022
  
• DOI: https://doi.org/10.1007/s00034-022-01955-2
  
  

This paper presents an area-efficient split capacitive array architecture for high-resolution successive approximation register (SAR) analog-to-digital converters (ADCs). The equivalent value method is proposed to adjust the bridge capacitance as an integer value so that the bridge capacitance can match well with the unit capacitance. A split capacitive array with redundancy is utilized in a 16-bit SAR ADC and the total required number of the unit capacitors is only 452. Four proposed static pre-amplifiers enhance the noise performance and the offset performance of the comparator and a proposed dynamic latch enhances the speed performance. As a result, the 180 nm design can achieve a 1 MS/s sampling rate with a single channel. The spurious-free dynamic range is 105.85 dB while the effective number of bits can reach 15.78 bits with a Nyquist-rate input while consuming 32 mW from a 5 V supply. The resultant Schreier and Walden figures of merit are 168 dB and 457 fJ/conversion-step respectively. The proposed SAR ADC occupies an active area of 4200 \(\upmu \mathrm{m}\) by 2200 \(\upmu \mathrm{m}\).


谁帮忙下载一下这篇文章呢？好像是成都华威电子公司做的，指标非常好啊，想学习学习。

meidinlei

如附件所示。

chungming

meidinlei 发表于 2022-7-16 22:12
如附件所示。

thanks,

delliang

thanks,

amswu

这面积4.2*2.2 mm ^2不小啊

hardmany

meidinlei 发表于 2022-7-16 22:12
如附件所示。

谢谢，感谢！！！

kiteinsky

看下，学习理解下。

lans0625

学习了。。。

jingxin_xd

谢谢分享

amigo.change