Novel compensated CMOS buffer
نویسندگان
چکیده
VDII ~ I A new CMOS buffer is introduced. A compensation circuit is used to cancel the output voltage offset resulting from the body effect. The voltage offset cancellation is achieved over all the input range hence resulting in a highly linear voltage transfer gain, which is independent of process variation. Class AB output stage is used in order to minimize the power consumption and increase the driving capability of the buffer. PSpice simulations for the proposed buffer are given to confirm the theoretical analysis. Figure 1. The uncompensated volrage buffer.
منابع مشابه
Tapered-VTH CMOS buffer design for improved energy efficiency in deep nanometer technology
In this paper, the novel “tapered-Vth” approach to design energy-efficient CMOS buffers is introduced. In this approach, the substantial energy consumption due to leakage is reduced by tapering the threshold voltage throughout the buffer stages, other than tapering the transistor size. More specifically, the threshold voltage is progressively reduced when going from the last to the first stage....
متن کاملA New Low-Voltage, Low-Power and High-Slew Rate CMOS Unity-Gain Buffer
Class-AB circuits, which are able to deal with currents several orders of magnitude larger than their quiescent current, are good candidates for low-power and high slew-rate analog design. This paper presents a novel topology of a class AB flipped voltage follower (FVF) that has better slew rate and the same power consumption as the conventional class-AB FVF buffer previously presented in liter...
متن کاملA 0.18um CMOS Current Reused Low-Noise Amplifier with Gain Compensated for Ultra-Wideband Wireless Receiver
A current reused low-noise amplifier (LNA) with gain compensated to extend the bandwidth and is designed for ultra-wideband (UWB) wireless receiver. The design consists of two cascode common-source amplifier and an output buffer which is implemented in 0.18um RF CMOS process. The LNA gives 13.1dB gain; 9.1GHz 3dB bandwidth (3.1-12.2GHz) while consuming 13.9mW through a 1.8V supply. Over the 3.1...
متن کاملFully Differential Current Buffers Based on a Novel Common Mode Separation Technique
In this paper a novel common mode separation technique for implementing fully differential current buffers is introduced. Using the proposed method two high CMRR (Common Mode Rejection Ratio) and high PSRR (Power Supply Rejection Ratio) fully differential current buffers in BIPOLAR and CMOS technologies are implemented. Simulation results by HSPICE using 0.18μm TSMC process for CMOS based st...
متن کاملDesign of a high frequency low voltage CMOS operational amplifier
A method is presented in this paper for the design of a high frequency CMOS operational amplifier (OpAmp) which operates at 3V power supply using tsmc 0.18 micron CMOS technology. The OPAMP designed is a two-stage CMOS OPAMP followed by an output buffer. This Operational Transconductance Amplifier (OTA) employs a Miller capacitor and is compensated with a current buffer compensation technique. ...
متن کامل