Chapter 4 Theory of Operation
© National Instruments Corporation 4-9 SCXI-1120/D User Manual
Analog Output Circuitry
Figure 4-5 shows the SCXI-1120/D analog output circuitry.
Figure 4-5.
Analog Output Circuitry
The SCXI-1120/D output circuitry consists of a buffered-output
multiplexer and channel-select hardware. The channel-select hardware
consists of a counter. This counter is needed when the module is operating
in the multiplexed-output mode.
Rear Connector
MCH7+
W41
MCH7-
DTEMP
MCH6+
MCH1+
MCH6-
MCH1-
MCH0+
MCH0-
MTEMP
SCXIbus
ABO
Switch
Output
Stage
Control
Buffer
Output
Mux
Analog
Reference
Output Stage and
Hardware Scan
Control
From
From
From
Channel 1
Channel 6
Channel 7
Channel 0
Channel 7
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