Differential Gain Error (A_D)

Problem:
What is meant by the differential gain error (A_D) parameter?

Solution:
The differential gain error parameter, A_D, is defined as the change in ac gain with change in dc level. The ac signal is 40 IRE (0.28 V PK ) and the dc level change is ±100 IRE (±0.7 V). Typically tested at 3.58 MHz (NTSC) or 4.43 MHz (PAL) carrier frequencies. It is represented in units of %.

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