High-Speed Voltage Output – up to 1 MS/s/Channel, up to 16 Bits, up to 32 Channels

5

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Specifications – NI 671x, NI 673x

These specifications are typical at 25 °C unless otherwise stated.

Analog Output

Output Characteristics

Number of channels

NI 6715/6713/6733 ........................

8 voltage outputs

NI 6711/6731..................................

4 voltage outputs

Resolution ...........................................

12 bits, 1 in 4,096 (NI 671x),

16 bits, 1 in 65,536 (NI 673x)

FIFO buffer size

NI 6713/6733..................................

16,384 samples

NI 6711/6715/6731 ........................

8,192 samples

Data transfers .....................................

DMA, interrupts,

programmed I/O

DMA modes (PXI/PCI only) .................

Scatter-gather

Voltage Output

Ranges.................................................

±10.0 V, ±AO EXT REF

Output coupling...................................

DC

Protection ............................................

Short-circuit to ground

Digital I/O

Number of channels............................

8 input/output

Compatibility .......................................

5 V TTL/CMOS

Power-on state....................................

Input (high-impedance)

Data transfers ......................................

Programmed I/O, DMA (NI 673x),

interrupts (NI 673x)

Input buffer .........................................

2048 B (NI 673x)

Output buffer.......................................

2048 B (NI 673x)

Transfer rate........................................

10 Mwords/s (NI 673x)

Timing I/O

General-Purpose Up/Down Counter/Timers

Number of channels............................

2

Resolution ...........................................

24 bits

Compatibility .......................................

5 V TTL/CMOS

Digital logic levels

Base clocks available..........................

20 MHz and 100 kHz

Data transfers .....................................

DMA (except DAQCard-6715),

interrupts, programmed I/O

DMA modes ........................................

Scatter-gather

Digital Trigger

Purpose

Analog output .................................

Start trigger, gate, clock

General-purpose counter/timers ....

Source, gate

Source .................................................

(except NI 6715)

PCI ...................................................

RTSI <0...6>

PXI ...................................................

PFI <0...9>

Slope ...................................................

Positive or negative;

software-selectable

Compatibility .......................................

5 V TTL/CMOS

Specifications – NI 672x

These specifications are typical at 25 °C unless otherwise stated.

Analog Output

Output Characteristics

Number of channels

NI 6722 ...........................................

8 voltage outputs

NI 6723 ...........................................

32 voltage outputs

Resolution ...........................................

13 bits, 1 in 8,192

Max update rate

FIFO buffer size ...................................

2,048 samples

Data transfers ........................................

DMA, interrupts, programmed I/O

DMA modes ........................................

Scatter gather

Voltage Output

Ranges.................................................

±10 V

Output coupling...................................

DC

Protection ............................................

Short-circuit to ground

Digital I/O

Number of channels............................

8 input/output

Compatibility .......................................

TTL/CMOS

Power-on state....................................

Input (high-impedance)

Data transfers .....................................

Programmed I/O

Maximum Update Rate (NI 671x/673x)

Max Update Rate (NI 6715)

Number of

Channels

Using Local

Using Host

Using Local

Using Host

1

1,000

1,000

1,000

800

2

1,000

1,000

850

400

3

1,000

1,000

750

266

4

1,000

1,000

650

200

5

1,000

1,000

600

160

6

952

1,000

550

133

7

833

869

510

114

8

740

769

480

100

Level

Minimum

Maximum

Input low voltage

0 V

0.8 V

Input high voltage

2 V

5 V

–

0.4 V

4.35 V

–

Max Update Rate (kS/s)

Number of Channels

1

800

800

2

714

714

8

476

182

16

333

90.9

24

253

60

32

204

45

beginning when cycling through it. This additional time is not incurred when using host PC memory for waveform

generation. The max update rate in FIFO mode does not change regardless of the number of devices in the system.

numbers may change when using more devices or when other CPU or bus activity occurs.