Maintenance; Introduction; Drift - ZiLOG Z80-AIO Hardware User Manual

7.1 Introduction

analog boards.

7.2 Drift

In any System, powered on Operation will cause the components
to drift from their original values.
evident in analog Systems.
on the AIO and AIB, use thin-film laser-trimmed resisters
parts per million and a ratio temperature coefficient of 3-5
parts per million.
drift could be 200-600 parts per million and the typical
ratio drift could be 25-50 parts per million.
that after 400 hours of Operation, the offset could have
and gain ad^ustments should be checked once every six months.
The Eurr-Brown components, used
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The offset