OPERATIONAL AMPLIFIER AND BAND WIDTH PASS FILTER

[antino]

will u plz tell me how op-amp and band pass filter works and what are its application????

[AJISH ALFRED]

an operational amplifier is basically a differential amplifier, in which the difference in voltage applied on two input terminals ( – inverting and  + non-inverting ) get amplified.

 

bandpass filter allows to pass only a band of frequency. It will attenuate all  the frquencies above and below this ‘pass band’.

[umar farrok]

hi antino before you move towards band pass first consider the low pass and high pass filter , low pass filter conncetion is possible to implement with the help of passive component such as resistor capacitor and inductor, usign rc circuit low pass and high pass filter deisgn is possible , if once you use this circuit combination as filter consider capacitor or inductor act as reactance and operation should be cosnidered as freq, so frequency and reactance is inversely proportional . if freq rises reactance low and vice versa . band pass is comination of high pass filter connected with low pass filter . if you know low and high pass filter thoroughly band pass and stop is easier 

[umar farrok]

amlifier is a circuit which is used to boost the amlitude level with the help of souce conncected to it. operational amplifier uses negative feedback conncted to its inverting terminal, where input and output is out of phase. generally ideal opamp has high input impedance and low output impedance . 

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