Appendix A Specifications
© National Instruments Corporation A-5 NI 783xR User Manual
Slew rate................................................. 10 V/µs
Noise ......................................................150
µV
rms
, DC to 1 MHz
Glitch energy
at midscale transition .............................±200 mV for 3
µs
Digital I/O
Number of channels
NI 7830R.........................................56
NI 7831R.........................................96
NI 7833R.........................................96
Compatibility .........................................TTL
Digital logic levels
Maximum output current
I
max
(source)..................................... 5.0 mA
I
max
(sink)........................................5.0 mA
Input leakage current..............................±10 µA
Power-on state........................................Programmable, by line
Data transfers .........................................Interrupts, programmed I/O
Protection
Input................................................ –0.5 to 7.0 V
Output .............................................Short-circuit (up to eight lines
may be shorted at a time)
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 (V
OL
),
where I
OUT
= –I
max
(sink)
Output high voltage (V
OH
),
where I
OUT
= I
max
(source)
—
2.4 V
0.4 V
—
