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Showing Abstract of A Constant-Gm, Rail-to-Rail Input Stage ultra Low Power Operational Amplifier using adaptive biasing & driven bulk topology

  
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[ Downloads: 6 | Abstract Viewed: 1165 | Pages: 6 ]
Title

A Constant-Gm, Rail-to-Rail Input Stage ultra Low Power Operational Amplifier using adaptive biasing & driven bulk topology
Topic: الكترونيك Published Year: 1388
Presentation:
Published in:

[ 12th Iranian Student Conference on Electrical Engineering ]

Original Language: English Full Text Size: Not Available

 

Abstract of the Article

 

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Download This article in PDF format A Constant-Gm, Rail-to-Rail Input Stage ultra Low Power Operational Amplifier using adaptive biasing & driven bulk topology

 

Authors:

[ M Pooyan ] - Department of Electrical Engineering, shahed University, IRAN
[ P Koohzadi ] - Department of Electrical Engineering, Arak Islamic Azad University, IRAN

 

Abstract:

In this paper, a 0.9V supply , rail-to-rail operational amplifier has been designed. Because of low voltage operation we have been made to use input differential pair in weak inversion mode and consequently low frequency response is natural. To obtain a gm-constant transconductor in first stage we use from a different structure that achieves smaller gm variation than previously defined circuits.. This opamp is designed in 0.18 μm CMOS process, and simulated in HSPICE

 

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