©
National Instruments Corp.
17
NI 9215 Operating Instructions and Specifications
The NI 9215 with BNC has a resistor that ens
u
res the inp
u
t voltage
does not drift o
u
tside of the common-mode range.
Figure 9.
Input Circuitry for One Channel on the NI 9215 with BNC
AI+
AI–
Isolated
ADC
NI 9215 with BNC
+
–
Instrumentation
Amplifier
100 k
Ω
Overvoltage
Protection
Overvoltage
Protection