access icon free Super class AB RFC OTA with adaptive local common-mode feedback

A super class AB recycling folded cascode operational transconductance amplifier is presented. It employs local common-mode feedback using two matched tuneable active resistors, allowing to adapt the amplifier to different process variations and loads. Measurement results from a test chip prototype fabricated in a 0.5 μm CMOS process validate the proposal.

Inspec keywords: CMOS analogue integrated circuits; resistors; operational amplifiers; integrated circuit testing; recycling; circuit feedback

Other keywords: adaptive local common-mode feedback; super class AB recycling folded cascode operational transconductance amplifier; super class ABRFCOTA; test chip prototype; process variations; CMOS process; matched tuneable active resistors; size 0.5 mum

Subjects: Semiconductor integrated circuit design, layout, modelling and testing; CMOS integrated circuits; Amplifiers; Analogue circuit design, modelling and testing

http://iet.metastore.ingenta.com/content/journals/10.1049/el.2018.6362
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content/journals/10.1049/el.2018.6362
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