Typical Matrix Switching Schemes; Single-Ended Switching; Figure; Single-Ended Switching Example - Keithley 7012-S Instruction Manual

7012
Matrix Row
(1 of 4)
H
L
H = High
Backplane
L = Low
Jumpers
G = Guard

Figure 2-3

Matrix row connections to backplane

HI
LO
Source or
Measure
Figure 2-4

Single-ended switching example

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7001
Analog
Backplane
H
L
G
Row
H
L
7012
2.3

Typical matrix switching schemes

The following paragraphs describe some basic switch-
ing schemes that are possible with a two-pole switch-
ing matrix. These switching schemes include some
various shielding conÞgurations to help minimize
noise pick up in sensitive measurement applications.
These shields are shown connected to chassis ground.
For some test conÞgurations, shielding may prove to
be more effective connected to circuit common. Chassis
ground is accessible at the rear panel of the Model 7001.

2.3.1 Single-ended switching

In the single-ended switching conÞguration, the source
or measure instrument is connected to the DUT
through a single pathway as shown in Figure 2-4.
Columns
DUT
Matrix Switching Basics
Optional
Shield
2-3