A low-voltage wide-input CMOS comparator for sensor application using back-gate technique

Yu Cherng Hung, Bin Da Liu

研究成果: Article同行評審

20 引文 斯高帕斯(Scopus)

摘要

In this paper, two new analog CMOS comparators (Type-I and Type-II) with low-voltage and wide-input capabilities are proposed. The comparator receives two analog inputs and puts out one digital state to identify the larger (or the smaller) of the input variables, which represents an useful operation in data conversion and sensory signal processing. Without using special fabrication technologies, the supply voltage of the circuit is reduced to 1 V. Due to the utilization of CMOS back-gate technique, the input range of the comparators is greatly improved. The comparators are composed of bulk-driven stage and dynamic latch. By using a CMOS n-well technology, the results of HSPICE simulations indicate that the response time of Type-I circuit is 1 μs under 10 mV identified resolution. Type-II comparator achieves 5 mV identified resolution. The input dynamic ranges of the comparators are approximately rail-to-rail.

原文English
頁(從 - 到)53-59
頁數7
期刊Biosensors and Bioelectronics
20
發行號1
DOIs
出版狀態Published - 2004 七月 30

All Science Journal Classification (ASJC) codes

  • 生物技術
  • 生物物理學
  • 生物醫學工程
  • 電化學

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