Figure 6. Connecting Floating Differential Signals to the NI USB-7845R OEM Device
PGIA
ADC
AI+
NI USB-7845R OEM
Connection
Accessory
AISENSE
AIGND
V
1
+
–
Overvoltage
Protection
AI–
Overvoltage
Protection
Overvoltage
Protection
Analog Output
The NI USB-7845R OEM device provides connections for eight analog output channels. Each
channel has an AO pin and AOGND pin to which you can connect a load.
Figure 7. Connecting a Load
NI USB-7845R OEM
Connection
Accessory
AOGND
LOAD
AO
DAC
Digital I/O
The NI USB-7845R OEM device provides connections for 48 digital input/output (DIO)
channels. Connector 1, Connector 2, and Connector 3 contains 16 low-speed channels that can
run up to 10 MHz signal frequencies. Each connector has selectable logic levels that you can
configure as 1.2 V, 1.5 V, 1.8 V, 2.5 V, or 3.3 V. You can configure each channel as input or
output.
NI USB-7845
R
OEM User Manual
|
© National Instruments
|
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