Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4954024 | AEU - International Journal of Electronics and Communications | 2017 | 21 Pages |
Abstract
The paper presented here offers a two stage amplifier where both stages are in class AB mode. The input stage makes use of a floating gate metal oxide semiconductor (FGMOS) transistor which enables this circuit to operate at lower voltage and also increases overall linearity. The frequency compensation is done using voltage buffer scheme. A super source follower (SSF) acts as voltage buffer and exploited here with a series capacitor. The function of SSF is to enhance phase margin (PM) and gain bandwidth product (GBW) of the amplifier. The small signal equivalent and mathematical analysis of circuit is also given. The performance of the proposed circuit has been verified by using Mentor Graphics Eldo simulation tool with TSMC CMOS 0.18 μm process parameters. The ac simulation results of amplifier show that GBW is 9 MHz and power consumption is 0.5 mW.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Networks and Communications
Authors
Urvashi Bansal, Maneesha Gupta,