Study of chopper stabilization in single ended amplifiers

Chopper stabilization is one of the prominent techniques used to overcome low-frequency noise and DC offset errors in CMOS amplifiers. This thesis presents a detailed analysis of this approach. The fundamentals of chopping, followed by the design and underlying tradeoffs of a chopper stabilized amplifier, are included. A chopper stabilized, single ended amplifier in closed loop unity gain configuration is designed using the folded cascode topology in 180 nm CMOS process. This design is verified for functionality by a thorough comparison with its non-stabilized counterpart. Simulation results, including the benefits obtained in terms of reduced flicker noise and an amplified output voltage independent of input DC offsets, are discussed.

Name thesis:degree_name

M.S.

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Electrical & Computer Engr

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2020

Author dc:creator

• Malhotra, Chetna

Contributors dc:contributor

• Hanumolu, Pavan K.

• Chopper Stabilization
• Operational Amplifier

Statement dc:rights

• Copyright 2019 Chetna Malhotra

Language dc:language

en

Handle dc:identifier

http://hdl.handle.net/2142/106188

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/106188