NI7831R datasheet(11/17 Pages) NI

Part #	NI7831R

Description	NI R Series Multifunction RIO

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Manufacturer	NI [National Instruments Corporation]

Direct Link	http://www.NI.com

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Slew rate

10 V/μs

Noise

150 μV

, DC to 1 MHz

rms

Glitch energy at midscale transition

±200 mV for 3 μs

Digital I/O

Number of channels

NI 781xR

160

NI 7830R

56

NI 7831R/7833R/7841R/7842R/7851R/7852R/7853R/7854R

96

Compatibility

TTL

Digital logic levels

Level

Min

Max

Input low voltage (

)

V

IL

Input high voltage (

)

V

IH

0.0 V

2.0 V

0.8 V

5.5 V

Output low voltage (

), where

= –4 mA

V

OL

I

OUT

Output high voltage (

), where

= 4 mA

V

OH

I

OUT

0 V

2.4 V

0.4 V

3.3 V

Output current

Source

4.0 mA

Sink

4.0 mA

Input leakage current

±10 μA

Power-on state

Programmable, by line

Protection

Input

NI 781xR/783xR

–0.5 to 7.0 V, single line

NI 784xR/785xR

–20.0 to 20.0 V, single line

Output

Short-circuit (up to eight lines may be shorted at a time)

Minimum pulse width

Input

25 ns

Output

12.5 ns

Minimum sampling period

5 ns

Reconfigurable FPGA

NI 7811R/7830R/7831R

FPGA type

Virtex-II V1000

Number of flip-flops

10,240

Number of 4-input LUTs

10,240

Number of 18 × 18 multipliers

40

Embedded block RAM

720 kbits

NI 7813R/7833R

FPGA type

Virtex-II V3000

Number of flip-flops

28,672

Number of 4-input LUTs

28,672

Number of 18 × 18 multipliers

96

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NI7831R Datasheet(PDF) 11 Page - National Instruments Corporation

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