Process-insensitive general purpose rail-to-rail operational amplifier using unity-size transistors

This paper presents the design of a general purpose rail-to-rail op-amp that is process technology insensitive. The basic concept is to design the op-amp using unity-size transistors. We demonstrate the approach by designing a size-fixed and a size-scaled op-amp that can function well over process t...

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Bibliographic Details
Main Authors: Shengqi Yang, Fuding Ge
Format: Conference Proceeding
Language:English
Subjects:
Circuits
CMOS process
CMOS technology
general purpose operational amplifier
MOS devices
Operational amplifiers
Power supplies
Process design
process-insensitive
Rail to rail amplifiers
Rail to rail operation
rail-to-rail operational amplifier
Transistors
unity-size transistor design
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Summary:This paper presents the design of a general purpose rail-to-rail op-amp that is process technology insensitive. The basic concept is to design the op-amp using unity-size transistors. We demonstrate the approach by designing a size-fixed and a size-scaled op-amp that can function well over process technologies from 0.5 ¿m to 65 nm CMOS. The ultimate goal of the design is a synthesizable op-amp that is insensitive or even independent on fabrication technology.
ISSN:2162-7541
2162-755X
DOI:10.1109/ASICON.2009.5351362