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NI R Series User Manual

Reconfigurable i/o module (ai, ao, dio) for pxi express, 8 ai, 8 ao, 48 dio, 1 ms/s ai, 512 mb dram, kintex-7 325t fpga
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USER MANUAL
NI PXIe-7858R
R Series Reconfigurable I/O Module (AI, AO, DIO) for PXI Express,
8 AI, 8 AO, 48 DIO, 1 MS/s AI, 512 MB DRAM, Kintex-7 325T FPGA
This document provides compliance, pinout, connectivity, mounting, and power information
for the NI PXIe-7858R.
Hardware Overview
The following high-level block diagram represents the NI PXIe-7858R.
Overvoltage
Protection
Overvoltage
Protection
Overvoltage
Protection
Overvoltage
Protection
Figure 1. NI PXIe-7858R Block Diagram
AI (x8)
ADC
INA
+5 V
Reference
AO (x8)
DAC
DIO (x16)
DIO (x32)
Device
Temperature
100 MHz
DDR3 RAM
OSC
AI
AO
Data/
Kintex-7
Address/
FPGA
Control
DIO
Flash
Memory
NI ASIC
NI PXIe-7858R

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  • Page 1 USER MANUAL NI PXIe-7858R R Series Reconfigurable I/O Module (AI, AO, DIO) for PXI Express, 8 AI, 8 AO, 48 DIO, 1 MS/s AI, 512 MB DRAM, Kintex-7 325T FPGA This document provides compliance, pinout, connectivity, mounting, and power information for the NI PXIe-7858R.
  • Page 2 Positive analog input signal connection Negative analog input signal connection AISENSE Reference connection for NRSE measurements AIGND Ground reference for the analog input signal Analog output signal connection AOGND Ground reference for the analog output signal 2 | ni.com | NI PXIe-7858R User Manual...

  • Page 3: Connectivity Options

    The provided clock source must be stable and glitch-free. Ground connection Supply (+5 Vout) 5 V power output connection for external devices No connection The NI PXIe-7858R is protected from overvoltage and overcurrent conditions. Note Refer to the device specifications, available at ni.com/manuals for more information.

  • Page 4: Analog Input

    Analog Input The NI PXIe-7858R provides connections for eight 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

    You can connect grounded or floating differential signal sources to the NI PXIe-7858R. Connect the positive voltage signal to the AI+ and the negative voltage signal to AI-. To connect grounded differential signals to the NI PXIe-7858R, you must also connect the signal reference to AI GND.
  • Page 6 Accessory Digital I/O The NI PXIe-7858R 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 and Connector 1 contains 32 high-speed DIO channels that can run up to 80 MHz signal frequencies.

  • 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-7858R to load a VI when the system powers on. The VI can then set the DIO lines to any power-on state.

  • Page 8: Worldwide Support And Services

    . You can find information about end-user license agreements (EULAs) ni.com/patents and third-party legal notices in the readme file for your NI product. Refer to the Export Compliance Information at ni.com/ for the NI global trade compliance policy and how to obtain relevant HTS codes, ECCNs, and other legal/export-compliance import/export data.

This manual is also suitable for:

Pxie-7858r

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