A high-temperature comparator with rail-to-rail input voltage range

Bo Liu,Matthew David Kollarits,Robert J Veillette,Joan Carletta,Kyeshin Lee

Circuits and Systems（2013）

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摘要

A high-temperature comparator with rail-to-rail input voltage range is presented. The design uses a 0.5-μm silicon-on-insulator (SOI) technology. The rail-to-rail operation is achieved using two folded-cascode differential amplifiers operating in parallel as an input stage. The output of the appropriate amplifier is connected to the comparator output through a logic-controlled analog multiplexer. The simulations show that the comparator remains operational over the full rail-to-rail common-mode input voltage range, with somewhat degraded input offset voltage for input voltages close to either supply voltage.

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关键词

comparators (circuits),differential amplifiers,low-power electronics,multiplexing equipment,silicon-on-insulator,soi,folded-cascode differential amplifiers,full rail-to-rail common-mode input voltage range,high-temperature comparator,input offset voltage,logic-controlled analog multiplexer,silicon-on-insulator technology,size 0.5 mum,folded-cascode differential amplifier,high temperature,low power,rail-to-rail comparator,silicon on insulator,low power electronics

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