2024-03-29T12:11:08Z
https://kitami-it.repo.nii.ac.jp/oai
oai:kitami-it.repo.nii.ac.jp:00008570
2022-12-13T02:22:05Z
10
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
吉田, 英一
谷本, 洋
open access
c2006IEEJapan
同相入力電圧
動作点,擬似差動増幅器
OPA
OTA
CMOSインバータ
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・
一般社団法人 電気学会
2006
jpn
conference paper
https://kitami-it.repo.nii.ac.jp/records/8570
電気学会研究会資料. ECT, 電子回路研究会
ECT-06
53
7
10
https://kitami-it.repo.nii.ac.jp/record/8570/files/ECT-06-53.pdf
application/pdf
949.6 kB
2018-02-02