High-Speed Voltage Output – up to 1 MS/s/Channel,
up to 16 Bits, up to 32 Channels
NI 673x, NI 671x, NI 672x
• Low-cost arbitrary waveform generation
• High-channel density
Recommended Software
• LabVIEW 7.x or higher
• Integrated multidevice synchronization bus
• Easy real-time control with
LabVIEW Real-Time
• LabWindows™/CVI 7.x or higher
• Measurement Studio 7.x or higher
• Analog Waveform Editor
• Digital triggering and external clocking
• Simultaneous updates
• 8 digital I/O lines (TTL/CMOS)
• Two 24-bit counter/timers
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
• Measurement services that simplify
configuration and measurements
Operating Systems
• Windows 2000/NT/XP
• Mac OS X
1Mac OS X and Linux applications must use
• Linux®
NI-DAQmx Base driver software.
Calibration Certificate Available
Family
Bus
Analog Outputs Update Rate per Channel (S/s)1 Output Resolution Output Range (V) External Voltage Reference Digital I/O Counter/Timers Triggering
NI 6711 PCI, PXI
NI 6713 PCI, PXI
NI 6715 PCMCIA
4
8
1 M
12
12
12
16
16
13
13
10
10
10
10
10
10
10
8
8
2, 24-bit
2, 24-bit
2, 24-bit
2, 24-bit
2, 24-bit
2, 24-bit
2, 24-bit
Digital
Digital
Digital
Digital
Digital
Digital
Digital
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
–
740 k to 1 M
100 k to 1 M
1 M
8
8
NI 6731
PCI
4
82
82
8
NI 6733 PCI, PXI
NI 6722 PCI, PXI
NI 6723 PCI, PXI
8
740 k to 1 M
182 to 800 k
45 to 800 k
8
32
–
8
1Update rate can vary depending on the number of channels used; 2Static or hardware-timed pattern generation and acquisition up to 10 MHz
Table 1. High-Speed Voltage Output Product Selection Guide
devices, you have complete control of each data point that is updated on
the output for each channel. This feature is significant 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 noise shape are
user-defined. In practice, the waveform is defined in a software buffer,
within PC memory, and is streamed to the voltage output device using
direct memory access (DMA) data transfers. Using DMA transfers, the
amount of memory located on board the voltage output device is
minimized and is swapped with inexpensive PC memory.
Overview and Applications
National Instruments high-speed voltage output devices 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
Features
Real-Time Control
The versatile NI high-speed voltage output devices commonly replace
You can use NI high-speed voltage output devices with the LabVIEW
several kinds of instruments including stand-alone PID controllers, low-speed Real-Time Module to deliver real-time, deterministic control loop execution.
arbitrary waveform generators, and function generators.
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, cutting-edge control algorithms
as well. High-performance control, on the order of eight PID loops running
in excess of 20 kHz each, is possible with this combination of hardware
Waveform Generation
These devices are capable of updating at rates up to 1 MS/s, giving you
the ability to generate waveforms up to 500 kHz. When using these