dSPACE DS1103 User Manual

Analog Inputs
The DS1103 contains two different types of analog/digital converters
(ADCs) for the analog input channels:
n Four ADCs with four multiplexed input signals each: ADCH1 ...
ADCH16
n Four parallel (non-mulitplexed) ADCs with one input signal each:
ADCH17 ... ADCH20
Objective
Information in this section
Hardware details
I/O Circuit and Electrical Characteristics 163
Information in other sections
Feature description
ADC Unit ( DS1103 Features)
Noise, crosstalk and inductive effects can degrade the
signal and lead to incorrect results if you do not perform
the following correctly.
Grounding and Shielding
Proper grounding and shielding reduces noise and inductive effects.
196
Reducing Crosstalk 200
Wiring Up External Devices 200
I/O Circuit and Electrical Characteristics
The following illustration is a simplified diagram of the input circuitry
of the ADCs.
Input circuit
R
in,amp
> 10 MΩ
ADC
1 kΩ
ADCH1 ... ADCH20
1 MΩ
R
in
» 1 MΩ
Where to go from here
s
Analog Inputs
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DS1103 Hardware Installation and Configuration November 2014
163
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dSPACE DS1103 Specifications

General

Brand	dSPACE
Model	DS1103
Category	Controller
Language	English