777740-01 Datasheet, PDF (1/8 Pages) National Instruments Corporation – High-Speed Voltage Output- up to 1 MS/s/Channel, up to 16-Bit, up to 32 Channels

High-Speed Voltage Output – up to
1 MS/s/Channel, up to 16-Bit, up to 32 Channels
NI 673x, NI 671x, NI 672x
• Low-cost arbitrary
waveform generation
• High channel density
• Integrated multidevice
synchronization bus
• Easy real-time control with
LabVIEW Real-Time
• Digital triggering and
external clocking
• Simultaneous updates
• 8 digital I/O lines (TTL/CMOS)
• Two 24-bit counter/timers
• Measurement services that simplify
configuration and measurements
Recommended Software
• LabVIEW 7.x or higher
• LabWindows/CVI 7.x or higher
• Measurement Studio 7.x or higher
• Analog Waveform Editor
Other Compatible Software
• Visual Studio .NET
• Visual Basic, C/C++, and C#
Measurement Services
Software (included)¹
• NI-DAQmx driver
• Measurement & Automation
Explorer configuration utility
Operating Systems
• Windows 2000/NT/XP
• Mac OS X
• Linux
1_{Mac OS X and Linux applications}
must use NI-DAQmx Base driver software.
Calibration Certificate Available
Analog
Update Rate
Output
Output
Family
Bus
Outputs
Per Channel (S/s)¹
Resolution
Range (V)
NI 6711
PCI, PXI
4
1M
12
±10
NI 6713
PCI, PXI
8
740 k to 1 M
12
±10
NI 6715
PCMCIA
8
100 k to 1 M
12
±10
NI 6731
PCI
4
1M
16
±10
NI 6733
PCI, PXI
8
740 k to 1 M
16
±10
NI 6722
PCI, PXI
8
182 k to 800 k
13
±10
NI 6723
PCI, PXI
32
45 k to 800 k
13
±10
1_{Update rate can vary depending on the number of channels used;} 2_{Static or hardware-timed pattern generation and acquisition up to 10 MHz}
Table 1. High-Speed Voltage Output Product Selection Guide
External Voltage
Reference





–
–
Digital I/O
8
8
8
8²
8²
8
8
Counters/
Timers
2, 24-bit
2, 24-bit
2, 24-bit
2, 24-bit
2, 24-bit
2, 24-bit
2, 24-bit
Triggering
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Overview and Applications
National Instruments high-speed voltage output modules combine
the latest in PC technologies to deliver simultaneous, multichannel
updates for control and waveform output applications. Use these
modules in a variety of applications, including:
• Stimulus/response
• Power supply control
• High-speed, deterministic control
• Sensor/signal simulation
because you can define not only common waveforms such as square,
sine, or sawtooth but also complex waveforms. For instance, you are
able to create a sine wave that is overlaid with noise in which the
amplitude and noiseshape is user-defined. In practice, the waveform
is defined in a software buffer, within PC memory, and is streamed to
the voltage output device using DMA (direct memory access) data
transfers. Using DMA transfers, the amount of memory located
onboard the voltage output device is minimized and is swapped with
inexpensive PC memory.
Features
NI high-speed voltage output devices are versatile devices that
commonly replace several kinds of instruments including stand-
alone PID controllers, low-speed arbitrary waveform generators, and
function generators.
Waveform Generation
These devices are capable of updating at rates up to 1 MS/s, giving
them the ability to generate waveforms up to 500 kHz. When using
these devices, you have complete control of each data point that is
updated on the output for each channel. This feature is significant
Real-Time Control
You can use NI high-speed voltage output devices with the LabVIEW
Real-Time Module to deliver real-time, deterministic control loop
execution. Because they are compatible with LabVIEW Real-Time,
common control algorithms, such as PID, are simple to implement
but, more importantly, you may prototype and implement complex
and cutting-edge control algorithms as well. High-performance
control, on the order of 8 PID loops running in excess of 20 kHz
each, is possible with this combination of hardware and software.
Each high-speed voltage output device offers multichannel
simultaneous updates and hardware-timed single-point updates.