Appendix A
Specifications
A-2
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Amplifier Characteristics
Input impedance
Normal powered on .........................1 M
Ω
Powered off .....................................900 k
Ω
Overload ..........................................900 k
Ω
Input bias current
....................................±
0.5 nA
Input offset current
.................................±
1.0 nA
CMRR
50 to 60 Hz ......................................70 dB
DC....................................................70 dB
Output range
...........................................±
10 V
Output impedance...................................91
Ω
Dynamic Characteristics
Bandwidth
SCXI-1104.......................................2 Hz
SCXI-1104C ....................................10 kHz
Minimum sample interval
0.012% accuracy..............................3
µ
s
0.0061% accuracy............................10
µ
s
System noise (referenced to input) .........500
µ
V
rms
Digital Signals
Absolute max voltage input rating..........5.5 V with respect to DGND
Digital input specifications (referenced to DGND)
V
IH
input logic high voltage ............2 V min
V
IL
input logic low voltage..............0.8 V max
I
I
input current leakage
....................±
1
µ
A max
Digital output specifications (referenced to DGND)
V
OH
output logic high voltage .........3.7 V min at 4 mA max
V
OL
output logic low voltage ..........0.4 V max at 4 mA max
