Transconductance feedback amplifier configuration exhibiting bandwidth-independent voltage gain

Gain-bandwidth independence is potentially available in all dominant-pole single-loop feedback amplifier configurations except those in which the forward gain element type is identical to the overall amplifier configuration. In particular, feedback derived from a potential divider around a transconductance amplifier generates bandwidth-independent voltage gain along with optimum input loading conditions that can be attained practically with relatively few modifications to a standard 3-stage voltage operational amplifier architecture. Detailed simulation using a generic 741 operational amplifier circuit confirms the analytical predictions