Description

Although current-feedback amplifiers (CFAs) have been in use for quite some time there is a reluctance to view them in the same light as voltage-feedback amplifiers (VFAs). For instance the gain-bandwidth curve of VFAs has a parallel in a transimpedance-bandwidth curve for CFAs. This parameter can be used to determine the closed-loop behavior of the CFA in same way that GBW can for the VFA. Not