Analog Output - National Instruments PCIe-7856R Manual

Figure 5. Connecting Floating Differential Signals to the PCIe-7856
+
1 MΩ 1 MΩ
V
1
Resistor Resistor
–
1 MΩ 1 MΩ
Resistor Resistor

Analog Output

The PCIe-7856 provides connections for eight analog output channels. Each channel has an
AO pin and AOGND pin to which you can connect a load.
NI PCIe-7856
Digital I/O
The NI PCIe-7856 provides connections for 48 digital input/output (DIO) channels. Connector
0 contains 16 low-speed channels that can run up to 10 MHz signal frequencies. Connector 1
contains 32 high-speed DIO channels that can run up to 80 MHz signal frequencies and
support external clock source. 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.
AI+
AI–
AISENSE
AIGND
Connection
Accessory
Figure 6. Connecting a Load
DAC
AOGND
Overvoltage
Protection
Overvoltage
Protection
Overvoltage
Protection
AO
Connection
Accessory
NI PCIe-7856 User Manual | © National Instruments | 5
PGIA ADC
NI PCIe-7856
LOAD