Theory of Operation Chapter 4
SC-2040 User Manual 4-2 © National Instruments Corporation
T/H
T/H
Input
Protection Input
Protection
+
-
Inst.
Amp
+
-
Inst.
Amp
Gains
Gains
• • •
• • • • •
• • •
• • •
A
A
68-Pin I/O Connector
50-Pin Breakout Connector
ACH0
ACH7
PFI7
PFI2
(Track/Hold Signal)
+5 V
+15 V
-15 V Power-On
LED
External
+5 V
Power
Converter
(External T rigger)
External
Track/Hold
Trigger
CH7+
CH7-
CH0-
CH0+