Single Miller Capacitor Feedforward Frequency Compensation on Three Stage Amplifier for Large Capacitive Load
نویسندگان
چکیده
This paper presents the analysis of single Miller capacitor feedforward compensation scheme which is used in threestage CMOS operational amplifiers. single Miller compensation capacitor in three-stage amplifiers can significantly reduce the total capacitor value, and therefore, the overall area of the amplifiers without influencing their stability. Feed forward technique is effectively combined to achieve better small-signal and large-signal performances. The structure proposed in this paper compared to all previous structures, significantly higher bandwidth and phase margin. The value of the compensation capacitor is also reduces significantly. conducted Simulations in this paper was on 0.25μm for (25kΩ//120Pf) large load.
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