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NB-A2000
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National Instruments · Macintosh NuBus

NB-A2000

The National Instruments NB-A2000 is a NuBus data acquisition board for legacy Macintosh systems. It provides four single-ended analog inputs with 12-bit resolution and a ±5 V input range.

ManufacturerNational Instruments
ModelNB-A2000
Product TypeAnalog input data acquisition board
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Host interfaceNuBus
Analog inputs4 single-ended channels
Resolution12 bits
Input range±5 V
Input FIFO1,024 words
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Overview

Product overview

Key product information and technical features.

NI lists the NB-A2000 among its NuBus devices for Macintosh and classifies it in the dynamic signal acquisition analog-input table. Its documented transfer methods are DMA and interrupts.

Software selection is important for this legacy platform. NI explicitly lists the NB-A2000 under NI-DAQ 4.9.4 support and states that NI-DAQ 6.x does not support NuBus devices.

  • Four single-ended analog input channels.
  • 12-bit conversion over a ±5 V input range.
  • 1,024-word input FIFO.
  • DMA and interrupt-based data transfer.
Verified specifications

Technical data

Verified product specifications.

Bus interfaceNuBus
Analog input channels4 single-ended
Analog input resolution12 bits
Analog input range±5 V
Input FIFO capacity1024 words
Maximum sampling rate listed in NI capabilities table1000000 S/s
Data transfer methodsDMA, interrupts
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National Instruments

Manufacturer

Macintosh NuBus

Host platform and bus

NB-A2000

Analog input acquisition board

Documented driver

NI-DAQ 4.9.4 lists NB-A2000 support.

Confirm the exact Macintosh host, operating system, and software combination before integration; NI-DAQ 6.x does not support NuBus devices.
Manuals & software

Technical resources

Manuals, software and technical resources for this model.

LabVIEW Function and VI Reference Manual — Appendix A, Table A-25Reference Manual · download.ni.com
Open →
LabVIEW Data Acquisition Basics Manual — NuBus hardware supportSoftware And Hardware Reference · download.ni.com
Open →
NI-DAQ and NI-DAQmx Base Driver Support for Mac OS — Chinese-language archiveSupport Article · ni.com
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FAQ

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Product-specific answers based on available technical information.

What interface does the NB-A2000 use?

The NB-A2000 uses NuBus and is listed by NI as a Macintosh NuBus device.

Which legacy NI driver lists support for the NB-A2000?

NI explicitly lists the NB-A2000 under NI-DAQ 4.9.4. The same support article states that NI-DAQ 6.x does not support NuBus devices. Verify the complete host and software configuration before use.

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