Design of a New Folded Cascode Op-Amp Using Positive Feedback and Bulk Amplification

Mohsen ASLONI  Khayrollah HADIDI  Abdollah KHOEI  

IEICE TRANSACTIONS on Electronics   Vol.E90-C   No.6   pp.1253-1257
Publication Date: 2007/06/01
Online ISSN: 1745-1353
DOI: 10.1093/ietele/e90-c.6.1253
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
folded-cascode,  positive feedback,  bulk driven,  total harmonic distortion,  

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In this paper, a new operational amplifier is presented that improves the specifications such as dc gain, common mode rejection ratio. To obtain these improvements, we have used the two important concepts of feedback and bulk amplification.