Essays about: "Operational Amplifier"

Showing result 16 - 20 of 21 essays containing the words Operational Amplifier.

  1. 16. Audio power amplifier design

    University essay from Avdelningen för elektronik, matematik och naturvetenskap

    Author : JINGJIE SUN; YINGJUN CHEN; [2011]
    Keywords : audio power amplifier;

    Abstract : The audio power amplifier is used to amplify low-power audio signals to a level that can be suitable for driving the loudspeakers. Thus the audio power amplifier becomes a kind of essential part in the electronics that could make sounds. In this thesis, a good performance audio power amplifier with tonality control is designed. READ MORE

  3. 17. A Study on the Design of Reconfigurable ADCs

    University essay from Elektroniksystem; Tekniska högskolan

    Author : Prakash Harikumar; Anu Kalidas Muralidharan Pillai; [2011]
    Keywords : ADC; Sigma-Delta; Delta-Sigma; MASH; Pipelined; Reconfigurable; MDAC; Loop filter; Switched-Capacitor; SNDR; Time-interleaved; Flash;

    Abstract : Analog-to-Digital Converters (ADCs) can be classified into two categories namely Nyquist-rate ADCs and OversampledADCs. Nyquist-rate ADCs can process very high bandwidths while Oversampling ADCs provide high resolution using coarse quantizers and support lower input signal bandwidths. READ MORE

  4. 18. Realization of Cascade of Resonators with Distributed Feed-Back Sigma-Delta

    University essay from Institutionen för systemteknik

    Author : Jawad Saleem; Abdul Mateen Malik; [2009]
    Keywords : sigma-delta modulator; operational transconductance amplfier; analog to digital converter; digital to analog converter; signal flow graph;

    Abstract : The Sigma Delta Modulator (SDM) based analog to digital conversion is cost effective and have the advantages as higher reliability, increased functionality, and reduction in chip cost. The thesis work includes the modeling of SDM with the signal flow graph in Matlab, optimization of the coefficients to improve the noise transfer function and signal transfer function. READ MORE

  5. 19. RF Sampling by Low Pass ΣΔ Converter for Flexible Receiver Front End

    University essay from Institutionen för systemteknik

    Author : Fahad Qazi; [2009]
    Keywords : RF sampling; Sampling Mixer; Downconversion; Sigma Delta modulator; Low pass Sigma Delta ADC; Passive Sigma Delta ADC; Mixer inside the loop;

    Abstract : In today’s world the multi-standard wireless receivers are gaining more and more popularity. End-users want to access voice, data and streaming media from a single wireless terminal. An ideal approach for multi-standard receiver front-end is to digitize a wide band RF signal available from the antenna. READ MORE

  6. 20. Evaluation of different CMOS processes using a circuit optimization tool

    University essay from Elektroniksystem

    Author : Anders Johansson; [2009]
    Keywords : CMOS process; Scaling; Operational transconductance amplifier; Optimization tool;

    Abstract : The geometry of CMOS processes has decreased in a steady pace over the years at the same time as the complexity has increased. Even if there are more requirements on the designer today, the main goal is still the same: to minimize the occupied area and power dissipation. READ MORE