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USER MANUAL
NI PXIe-7862
R Series Reconfigurable I/O Module (AI, AO, DIO) for PXI Express,
16 AI, 8 AO, 32 DIO, 1 MS/s AIO, 512 MB DRAM,
Kintex-7 325T FPGA
This document provides compliance, pinout, connectivity, mounting, and power information
for the NI PXIe-7862.
Hardware Overview
The following high-level block diagram represents the NI PXIe-7862.
Overvoltage
Protection
Overvoltage
Protection
Overvoltage
Protection
Overvoltage
Protection
Overvoltage
Protection
Figure 1. NI PXIe-7862 Block Diagram
AI (x8)
ADC
INA
+5 V
Reference
AO (x8)
DAC
DIO (x16)
AI (x8)
ADC
INA
+5 V
Reference
DIO (x16)
100 MHz
DDR3 RAM
OSC
AI
AO
Kintex-7
FPGA
Data/
Address/
DIO
Control
AI
DIO
Device
Temperature
Flash
Memory
NI ASIC
NI PXIe-7862
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Summary of Contents for National Instruments PXIe-7862
- Page 1 16 AI, 8 AO, 32 DIO, 1 MS/s AIO, 512 MB DRAM, Kintex-7 325T FPGA This document provides compliance, pinout, connectivity, mounting, and power information for the NI PXIe-7862. Hardware Overview The following high-level block diagram represents the NI PXIe-7862. Figure 1. NI PXIe-7862 Block Diagram 100 MHz Flash DDR3 RAM...
- Page 2 TERMINAL 1 TERMINAL 34 TERMINAL 1 TERMINAL 35 TERMINAL 68 TERMINAL 68 TERMINAL 35 Table 1. NI PXIe-7862 Signal Descriptions Signal Description Positive analog input signal connection Negative analog input signal connection 2 | ni.com | NI PXIe-7862 User Manual...
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Page 3: Connectivity Options
Note The pinout label on the lid of the SCB-68A accessory is incompatible with the NI PXIe-7862. Refer to the NI 78xxR Pinout Labels for the SCB-68A, available ni.com/manuals for the compatible pinout labels. Connectivity Options Use the following connection accessories and cables to access the signals on the I/O connectors. -
Page 4: Analog Input
Analog Input The NI PXIe-7862 provides connections for 16 AI channels. Each channel has an AI+ pin, AI- pin, and AIGND pin to which you can connect both single-ended or differential voltage signals. Use the AISENSE pin to connect non-referenced single-ended signals. -
Page 5: Analog Output
Connecting Differential Voltage Signals You can connect grounded or floating differential signal sources to the NI PXIe-7862. Connect the positive voltage signal to the AI+ and the negative voltage signal to AI-. To connect grounded differential signals to the NI PXIe-7862, you must also connect the signal reference to AI GND. - Page 6 Accessory Digital I/O The NI PXIe-7862 provides connections for 32 digital input/output (DIO) channels. Connector 0 and Connector 1 each contains 16 low-speed channels that can run up to 10 MHz signal frequencies. Each connector has a fixed logic level of 3.3 V. You can configure each channel as input or output.
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Page 7: Field Wiring Considerations
When the system powers on, the DIO channels are set as input low with pull-down resistors. To set another power-on state, you can configure the NI PXIe-7862 to load a VI when the system powers on. The VI can then set the DIO lines to any power-on state. Visit ni.com/info... -
Page 8: Worldwide Support And Services
National Instruments is not liable for damage resulting from such a connection. The power rating is 4.75 to 5.1 V DC at 0.5 A per connector. Worldwide Support and Services The NI website is your complete resource for technical support. At ni.com/support, you have access to everything from troubleshooting and application development self-help resources to email and phone assistance from NI Application Engineers.
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