DC on output of Chinese 'current mode' ebay amplifier

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timpert

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Joined 2004
This wikipedia article is also quite informative:

Current-feedback operational amplifier - Wikipedia, the free encyclopedia

However, the statment that it has no dominant pole capacitor is false: it is clearly there and drawn in the schematic. The speed of charge/discharge is controlled by the current fed into the - input, rather than the voltage difference between the inputs. This enables you to set the gain-bandwidth product with external components.
 
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