Appendix A
Specifications
A-2
ni.com
Gain = 100
After calibration .......................0.020% of reading max
Before calibration .....................0.1% of reading
Amplifier Characteristics
Input impedance
Normal powered on .........................>1 G
Ω
Powered off .....................................10 k
Ω
Overload ..........................................10 k
Ω
Input bias current ....................................±0.5 nA
Input offset current .................................±1.0 nA
CMRR
Output range ...........................................±10 V
Output impedance...................................91
Ω
Dynamic Characteristics
Bandwidth...............................................2 Hz (1102)
200 Hz (1102B)
10 kHz (1102C)
Minimum scan interval (per channel, any gain)
±0.012% accuracy ...........................3
µ
s
±0.0061% accuracy .........................10
µ
s
System noise (RTI)
Characteristics
1102
1102B
1102C
50 to 60 Hz, either gain
110 dB
90 dB
90 dB
DC, gain 1
75 dB min
75 dB min
75 dB min
DC, gain 100
100 dB min
100 dB min
100 dB min
Characteristics
1102
1102B
1102C
Gain = 1
50
µ
V
rms
50
µ
V
rms
70
µ
V
rms
Gain = 100
5
µ
V
rms
5
µ
V
rms
10
µ
V
rms
