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Common emitter (common -E) amplifier circuit of broadband tr

2015-01-06 04:03  
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Common emitter (common -E) amplifier circuit of broadband transconductance operational amplifier and buffer OPA660
Figure (a) shows the discrete componentscommon- emitter amplifier, andtransconductance changes in the whole temperature range , Vo is the inverting gain , Vos only has a few volts. Figure (b) shows common emitter amplifier composed of the OPA660, andthe transconductance is a constant in the whole temperature range, Vo is the in-phase gain , Vos = 0V.