Open-Loop Transimpedance Parameter (Z_t)

Problem:
What is meant by the open-loop transimpedance parameter (Z_t)?

Solution:
The open-loop transimpedance parameter, Z_t, is defined as the frequency dependent ratio of change in output voltage to the frequency dependent change in current at the inverting input in a transimpedance or current feedback amplifier. Z_t is expressed in units of W.

Also refer to the following related links:
Op Amp Parameter Table
Op Amp Parameter Information

These pages were extracted from Op Amps For Everyone, Chapter 11, by Bruce Carter, Ron Mancini–Editor in Chief.
Copyright © 2000, Texas Instruments Incorporated