Single Miller Compensation with Split Output and Current Amplifier (SMSOC) Use in Three Stage Amplifiers to Driving Ultra Large Capacitive Loads
نویسندگان
چکیده
In this paper, there is a combined approach which is used to compensate three stage amplifiers with ultra large capacitive loads and low power, using current mirror amplifier with split output is to decrease the occupied level of compensation capacitor that causes to lessen the occupied level of chip –area for using compensation capacitor and getting resulted in the light of better slew rate (SR), settling time (Ts) and gain bandwidth (GBW). this method causes increasing the capability driving of capacitive loads which is around 20nF.The result of simulation in 90nmCMOS process and load capacitor 500pF and compensation capacitor 0.8pF , will prove the advantages of this approach.
منابع مشابه
Advances in RNMC Technique with Dual-Active Current and Voltage Buffer for High-Load Three- Stage Amplifiers
— This paper presents a novel compensation technique for low voltage low power three-stage amplifier driving large capacitive loads. The frequency bandwidth of this amplifier is improved due to usage of dual-active buffers in the efficient compensation network while a feed forward transconductance helps to enhance output large signal response. The paper provides a design procedure by developing...
متن کامل1.5 V large-driving class-AB buffer amplifier with quiescent current control - Electronics Letters
Introduction: The class-AB buffer amplifier is widely used for driving heavy resistive or capacitive loads [1–4]. Some buffer amplifiers employ a pseudo-source follower, which has a pair of complementary common-source transistors with two feedback loops consisting of a pair of complementary error amplifiers [1–2]. Employing error amplifiers introduces the excess phase shift and makes the freque...
متن کاملSingle Miller Capacitor Frequency Compensation on Three Stage Amplifier for Large Capacitive Load
This paper presents the analysis of single Miller compensation scheme which is used in three-stage 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. In this paper we reviewed achieving high stability in addition to w...
متن کاملSingle Miller Capacitor Feedforward Frequency Compensation on Three Stage Amplifier for Large Capacitive Load
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...
متن کاملLow-voltage high-gain large-capacitive-load amplifiers in 90-nm CMOS technology
Low-voltage and low-power multistage operational transconductance amplifiers with new and efficient gain boosting and frequency compensation schemes are proposed in this paper. The presented amplifiers are designed to drive large capacitive loads with small power consumption at low-voltage supplies. The compensation schemes exploit a single Miller capacitor and an active feedback to form the ma...
متن کامل