–This paper presents a highly linear Operational Transconductance Amplifier (OTA) that combines two linearization techniques, one with adaptive biasing of differential pairs and second with resistive source degeneration. The Operational Transconductance Amplifier has ±0.9v power supply. Operational Transconductance Amplifier has been simulated with TANNER 0.18μm CMOS technology in Tspice. The s...

This brief paper describes a background calibration algorithm for a pipelined ADC with an open-loop amplifier using a Split ADC structure. The open-loop amplifier is employed as a residue amplifier in the first stage of the pipelined ADC to realize low power and high speed. However the residue amplifier as well as the DAC suffer from gain error and non-linearity, and hence they need calibration...

A low-noise CMOS amplifier operating at a low supply voltage is developed using the two noise reduction techniques of autozeroing and chopper stabilization. The proposed amplifier utilizes a feedback with virtual grounded input-switches and a multiple-output switched opamp. The low-noise amplifier fabricated in a 0.18-μm CMOS technology achieved 50-nV/ √ Hz input noise at 1-MHz chopping and 0.5...

[ /Title (AN60 77) /Subject (An IC Operational Transc onductance Amplifier (OTA) With Power Capability) /Autho r () /Keywords (Intersil Corporation, power switch, power amplifier, programmable power switch) /Creator () OBSOLE NO RECOMMEN Call Central Appli or email: cen An IC Operational Transconductance Amplifier (OTA) With Power Capability TE PRODUCT PLACEMENT AN6077.3 Application Note Octobe...

Due to their high stiffness, small dimensions, and low mass, piezoelectric stack actuators are capable of developing large displacements over bandwidths of greater than 100 kHz. However, due to their large electrical capacitance, the associated driving amplifier is usually limited in bandwidth to a few kilohertz or less. In this paper the limiting characteristics of piezoelectric drives are ide...

Wide frequency bandwidth has been internationally allocated for unlicensed operation around the oxygen absorption frequency at 60 GHz. A power amplifier and a low noise amplifier are presented as building blocks for a T/R-unit at this frequency. The fabrication technology was a commercially available 0.15 μm gallium arsenide (GaAs) process featuring pseudomorphic high electron mobility transist...

In this paper, a detailed model of a hybrid dual-stage Raman/erbium-doped fiber (EDF) amplifier is presented. This model takes into account the impact of double Rayleigh backscattering (DRB) noise, amplified spontaneous emission (ASE) noise and Kerr-nonlinearity induced impairments in the amplification process. Using this model, we present a comprehensive analysis of the operation of hybrid dua...

In this paper, a CMOS Multi-band LNA using High-Q active inductors load with a binary code band selector suitable for multi-standards wireless applications is proposed. Using an improved high-Q active inductor including two bits binary controlled code, the multi-band low noise amplifier operating at four different frequency bands is realized. The proposed amplifier is designed in TSMC 0.18-um C...

We present a high power, single-frequency fiber amplifier based on master oscillator power amplification (MOPA) chains in all-fiber configuration. A 1.5 meter long highly doped Yb fiber with absorption coefficient as high as 16 dB/m at the 975 nm wavelength is used for the main power amplifier, no special assistant stimulated Brillouin scattering (SBS) suppression approach is employed. The maxi...

ARTICLE INFO In many applications it is required to control a large output load using a relatively low control force. To satisfy such purposes, device like mechanical power amplifier can be used which generally gives very fast response. As per the requirement of the system, power can be instantaneously available from continuously rotating drums of mechanical power amplifier. This project will f...