the gain bandwidhtn of transimpedence amplifier

[yjj1119]

I want to ask a simple question:
How to caculate the gain bandwidth product of the transimpedence amplifier.
Is it the same as the opAmp used in the transimpedence?
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[laserman]

YES OP GWP
not depend on u r configuration

 

[LvW]

I want to ask a simple question:
How to caculate the gain bandwidth product of the transimpedence amplifier.
Is it the same as the opAmp used in the transimpedence?
[/img]

At first, you should be aware that the term "gain" is not appropriate for the CFA.
It should be replaced by "transimpedance" as the input which controls the output voltage is a CURRENT. Thus the output-to-input relation is in ohms and the transfer parameter is Ztr (transimpedance).

At second, the product "max. transimpedance Ztr.max=Ztr(w=0) times frequency" is NOT identical to a kind of "transit frequency" (crossing at 0 dB) because the frequency response is not universal compensated. This is in contrast to most of the voltage opamps.