Abstract
This paper presents a new reversed nested Miller compensation technique for multistage operational amplifier (opamp) design. The new compensation technique inverts the sign of the right half complex plane zero and shifts the frequency of the complex conjugate poles to a higher frequency. Simulation results indicate that the gain-bandwidth product and settling time are improved by factors of two and three, respectively, without degrading stability and power consumption. To verify the proposed technique, a three-stage opamp is fabricated with 0.6-μm CMOS technology. The measured results of the test circuit agree with the results that are obtained from theoretical analysis and circuit simulation.
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