@inproceedings{oai:kitami-it.repo.nii.ac.jp:00008570,
 author = {吉田, 英一 and 谷本, 洋},
 book = {電気学会研究会資料. ECT, 電子回路研究会},
 issue = {53},
 month = {},
 note = {We analyzed inverter-based pseudo-differential OTAs for their common-mode input range. In order to meet strong demands for OPA/OTAs operable from low power supply voltage, We investigated possibility of constructing inverter-based OTAs. CMOS inverters can operate from low power supply voltage; however, they have very narrow linear input range, and they are slngle-end amplifiers. Thus, we need common-mode suppression device when inverters are used to realize differential amplifiers. First, We analyzed a simple CMOS inverter and discussed requlrements to construct differential amplifier with inverters. Next, we analyzed three existing Pseudo-differential 0TAs, which are inverter-based OTAs, for their common-mode input ranges･ assuming 0.18 μm CMOS process. Finally, the common-mode input ranges are compared with that of a simple differential pair. We found that the inverter-based OTAs have comparable common-mode input range at 1.8 V power supply voltage; however, they have much wider common-mode input range at 1.0 V power supply voltage, than a simple differential pair. This shows the superiorlty Of inverter-based pseudo-differential Oms at low power supply voltage operation as low as 1 V･},
 pages = {7--10},
 publisher = {一般社団法人 電気学会},
 title = {CMOSインバータを用いた擬似差動OTAにおける同相入力の範囲の検討},
 volume = {ECT-06},
 year = {2006}
}