User`s guide

75
Chapter 3 System Overview
Measurement Input
3
The internal DMM provides a universal input front-end for measuring a
variety of transducer types without the need for additional external
signal conditioning. The internal DMM includes signal conditioning,
amplification (or attenuation), and a high resolution (up to 22 bits)
analog-to-digital converter. A simplified diagram of the internal DMM is
shown below.
To/From
Earth
Referenced
Section
= Optical Isolators
Amp
Signal
Conditioning
Analog to
Digital
Converter
Main
Processor
Analog
Input
Signal
34970A Refresh UG.book Page 75 Wednesday, February 17, 2010 12:34 PM