Figure 2-3. Onboard Equivalent Circuit For Diff Mode - National Instruments BNC-208X Series User Manual

BNC-2080 Board
Case
BNC Connector
+5 V
AIGND
The components are numbered differently for each channel. Table 2-2 lists the components in each
channel and their correspondence to the circuit shown in Figure 2-3.
BNC-208X Series User Manual
Input Schematic for ACH1 (DIFF mode)
S2
DIFF
3 2
Channel 9
Case
(Center)
R21
C
R15
D
F
R20
ACH 9
(-in)

Figure 2-3. Onboard Equivalent Circuit for DIFF Mode

SE
1
COMMON
BNC Connector
Jumpers Installed
Here at Factory
R3
C2
G
To Input
Multiplexer
ACH 1
on MIO-16
(+in)
2-4 © National Instruments Corporation
Chapter 2
1
AISENSE
2
3
AIGND
W1
Channel 1
(Center)
+5 V
R4
A
R11
B
AIGND
E
NRSE
RSE