I use it to research circuit behavior and quickly experiment with new circuits for my lab before prototyping a PCB (Printed Circuit Board) design. IntroductionLTspice is a free SPICE simulation software tool with schematic capture, waveform viewer, and many enhancements that runs on both Windows and Mac OS X. Cite this paper as:Sarode R.A., Chopade S.S. When a 10-pF capacitive load is drive, the amplifier achieves voltage gain approximate 20% more with exactly double gain bandwidth (GBW) which shows phase margin of 44.8°, 49.06°, and 53.70°, slew rate of 44.48, 10.29, and 9.77 V/µs, with dissipating power value of 830 μW at 2.5 V, 504.06 μW at 1.5 V, 486 µW at 1.2 V supply voltage for 180 nm, 130 nm, 90 nm CMOS technology, respectively. My work shows the two stage amplifier with Miller compensation techniques, simulated using LtSpice simulation tool for 180, 130 and 90 nm CMOS technology process. The Miller capacitor creates an undesirable right-half-plane (RHP) zero due a non inverting feedforward signal path is induced in the input of the second stage towards its output, which can be eliminated by using voltage buffer. The LtSpice simulation tool is used to present system result at low capacitive load with different characteristics. Part of thebook series (AISC, volume 468) AbstractThe paper represents a design procedure of basic two stage CMOS operational amplifier using Miller compensation technique.
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