In this paper, we present a new composite transistor circuit design technique that provides superior performance enhancement to analog circuits. By adding a composite transistor to the cascode-compensated amplifier, it has achieved a 102 dB DC gain, and a 37.6 MHz unity gain bandwidth while driving a 2 nF heavy capacitive load at a single 1.8 V supply. In the comparison of power-bandwidth and p...

Now a day’s demand of portable devices like multimedia devices, cellular phones, etc. are increasing and we are approaching towards handheld devices which are small in size and which requires large battery life. Power consumption has become most important design factor for VLSI circuits and system in low power devices. The Level shifter plays very critical role in low power devices. Level shift...

Substrate noise generated by digital circuits on mixed-signal ICs can disturb the sensitiveanalog/RF circuits, such as Low Noise Amplifier (LNA), sharing the same substrate. This paperinvestigates the adverse impact of the substrate noise on a high frequency cascode LNA laid out on alightly doped substrate. By studying the major noise coupling mechanisms, a new and efficientmodeling method is p...

In this paper, we discuss an optimization-based approach for design space exploration of analog circuits, i.e., how some design parameters affect the circuit performance and cost. By this exploration the designer is guided to make judicious trade-offs among the design parameters. For the design space exploration, which is expensive in terms of computation time, we use an optimization-based appr...