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Title: | ENHANCING THE DC-GAIN OF THE OPERATIONAL AMPLIFIER BY THE USE OF POSITIVE FEEDBACK METHODS |
Authors: | GAJJAR, JAY |
Keywords: | OPERATIONAL AMPLIFIER DC-GAIN POSITIVE FEEDBACK METHODS OPERATIONAL TRANS-CONDUCTANCE AMPLIFIER (OTA) |
Issue Date: | May-2025 |
Series/Report no.: | TD-8134; |
Abstract: | One of the key components of integrated systems are operational amplifiers, or Op- amps. Band gap voltage references, digital-to-analog converters, sample-and-hold circuits, and very precise analog-to-digital converters are just a few of the uses for operational amplifiers with high speed and gain. Presenting the architecture of a high DC-gain operational trans-conductance amplifier (OTA) is the aim of this study. In order to do this, the output resistance and, consequently, the DC-gain are increased using the positive feedback technique. Other operational amplifier characteristics, such unity gain bandwidth and stability, are unaffected by the suggested configuration. Some simulations are run in a 0.18 μm CMOS process with a supply voltage of 1.4 V in order to evaluate the performance of the suggested structures. The results of the simulation demonstrate that the suggested operational amplifier performs better than the current constructions. |
URI: | http://dspace.dtu.ac.in:8080/jspui/handle/repository/22149 |
Appears in Collections: | M.E./M.Tech. Electronics & Communication Engineering |
Files in This Item:
File | Description | Size | Format | |
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JAY GAJJAR M.Tech.pdf | 1.17 MB | Adobe PDF | View/Open |
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