Transimpedance (current drive) chipamp schematics? OPA549? - diyAudio
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Old 13th February 2007, 11:32 PM   #1
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Default Transimpedance (current drive) chipamp schematics? OPA549?

Hi, I have been looking for a schematic for a transimpedance amp for the national or BB chips. I have the OPA549 and I was wondering if the high current output could make them more appropriate for a current drive amp.

The few schematics that I found were incomplete. Can someone show me a proper schematic and hint me how to calculate the gain.

What should the input impedance (from pre) for the transimpedace be (to be good)?
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