©
National Instruments Corp.
25
NI 9512 Operating Instructions and Specifications
Inp
u
t c
u
rrent at 5 V .................... ±1 mA
Min p
u
lse width
1
Differential ........................... 100 ns
Single-ended ........................ 400 ns
Max co
u
nt rate
Differential ........................... 20
×
10
6
co
u
nts/sec
Single-ended ........................ 5
×
10
6
co
u
nts/sec
Forward, reverse, and home inp
u
ts
Inp
u
t type.................................... Programmable: sinking or
so
u
rcing
Digital logic levels, OFF state
Inp
u
t voltage
........................≤
5 V
Inp
u
t c
u
rrent
.........................≤
250
μ
A
Digital logic levels, ON state
Inp
u
t voltage ........................ 11 to 30 V
Inp
u
t c
u
rrent
.........................≥
2
m
A
Inp
u
t impedance ......................... 30 k
Ω
±5%
1
Ass
u
mes the minim
u
m filter setting. Refer to the
NI SoftMotion Module
book of the
LabVIEW Help
for more information abo
u
t filter options.
