A low power wide bandwidth CMOS folded-cascode amplifier

Jin Sun; Xiaolin Zhang

doi:10.1117/12.855496

2 April 2010 A low power wide bandwidth CMOS folded-cascode amplifier

Jin Sun, Xiaolin Zhang

Proceedings Volume 7651, International Conference on Space Information Technology 2009; 76512R (2010) https://doi.org/10.1117/12.855496
Event: International Conference on Space Information Technology 2009, 2009, Beijing, China

Abstract

To solve the problem of traditional amplifiers that high unity-gain bandwidth is obtained in exchange of big-power, a low power wide band-width folded-cascode fully differential amplifier with cascode current-mirrors load is designed based on Smic0.18 um rf CMOS technology. Transitional capacitor and Miller capacitor are applied to enhance the stability of frequency-characteristic; Common-mode feedback circuit is added to stabilize the common-mode output voltage of differential structure; Test results show, with the power supply of 1.8V, the circuit has an open-loop gain of 76.07dB, a phase margin of 50.6°, a unity-gain bandwidth of 215.7MHz and a CMRR of 120dB, while consuming 1.75mW of power.

Citation Download Citation

Jin Sun and Xiaolin Zhang "A low power wide bandwidth CMOS folded-cascode amplifier", Proc. SPIE 7651, International Conference on Space Information Technology 2009, 76512R (2 April 2010); https://doi.org/10.1117/12.855496

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available