Ajay Taparia

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Introduction To achieve high gain with continued scaling in CMOS fabrication processes, use of three-stage op-amps has become indispensable. In the progression of CMOS technology development, the supply voltage has been decreasing while the transistor threshold voltages do not effectively scale. Also the inherent gain available from the transistors has been(More)
A CMOS active inductor circuit intended for power-supply decoupling application is presented. The idea is to minimize the switching noise generated by the digital part of a mixed-signal integrated circuit. This is essential when sensitive analog circuits share the same power supply bus with a digital signal processor. In systems with a single clock, the(More)
Acknowledgements First and Foremost, I would like to acknowledge the help from my supervisor, Prof. T.R. Viswanathan, who had inspired me to look at circuits from a different perspective and obliged to have many discussions on circuits. I would also like to acknowledge the help of Mr. Ajay Taparia, Ph.D student at UT, Dallas, in understanding the working of(More)
This paper describes a dual band low-IF transceiver front-end for the Mobile WiMAX (802.16e) standard. The transceiver is implemented in TSMC 0.18 mum CMOS technology and covers the frequency ranges from 2.3 - 2.7 GHz. The front end transmitter provides an output gain control of 50 dB with an EVM below 3%, where as the receiver achieves gain of 37 dB and a(More)
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