Software-Timed Analog Output –
16-Bit, 16 or 32 Channels
NI 670x
• 16 voltage and 16 current outputs
• 16-bit resolution
• 8 (5 V TTL/CMOS) lines
• User-defined power-up states
• Measurement services that simplify
configuration and measurements
Operating Systems
• Windows 2000/NT/XP
Recommended Software
• LabVIEW
• LabWindows/CVI
• Measurement Studio
Other Compatible Software
• Visual Studio .NET
• Visual Basic, C/C++, and C#
Measurement Services
Software (included)
• NI-DAQmx driver
• Measurement & Automation
Explorer configuration utility
Calibration Certificate Available
Product
NI 6703
NI 6704
1
The
Bus
PCI
PCI
PXI
Analog Outputs
16 voltage
16 voltage
16 current
Resolution
16 bits
16 bits
Output Rate
Static
Static
Output Range
± 10 V
±10 V,
0 to 20 mA
1
Digital I/O
8
8
Counter/Timers
–
–
Current Sinks
–
3
Triggers
–
–
current output varies when set between 0 and 100 µA.
Table 1. Channel, Speed, and Resolution Specifications
Overview
NI 670x devices are software-timed voltage and current output
devices for PCI and PXI. With NI 6704 devices, you get 16 voltage
outputs and 16 current outputs that you can use at the same time
independently, as well as eight digital I/O (DIO) lines. You can
independently set each output from ±10 V or 0 to 20 mA. The NI 6703
delivers 16 voltage outputs in addition to eight DIO lines.
Current Output Channels (NI 6704 only)
All 16 current outputs are identical. You can set each channel to
source current from 0 to 20 mA – it does not sink current.
The channels source current without requiring an external excitation
source. Each output is accurate to ±2 µA.
I/O Connector
The analog outputs are available at a 68-pin SCSI II shielded
connector. VCH<0..15> are the voltage output channels.
ICH<16..31> are the current output channels. Each channel is
referenced to a ground line, AO GND<0...31>, which is shared
between a voltage and current channel. A fused 5 VDC power signal
from the PCI or PXI bus is available at the I/O connector as well.
Hardware
Voltage Output Channels
All 16 voltage outputs on the NI 6703 and NI 6704 are identical.
You can set each channel for a bipolar voltage output of ±10 V.
Each output is accurate to ±1 mV.
NI [ NATIONAL INSTRUMENTS CORPORATION ]
