© National Instruments Corporation
A-1
SCXI-1124 User Manual
Appendix A
Specifications
This appendix lists the specifications for the SCXI-1124. These specifications are typical at
25
°
C and 50% humidity unless otherwise stated. The operating temperature range is 0
°
to 50
°
C.
Analog Outputs
Output Characteristics
Number of channels
Six
Resolution
12 bits
!
Common-mode isolation
250 Vrms channel to channel
250 Vrms channel to ground
Max update rate
1
Single channel
200 Hz (system and software dependent)
All six channels
30 Hz (system and software dependent)
Type of DAC
7545
Transfer Characteristics
Relative accuracy (INL)
±
1/2 LSB
Absolute accuracy
Current output
±
0.1% of full-scale range max
Voltage outputs
0.05% of full-scale max
DNL
±
1 LSB (guaranteed monotonic)
Monotonicity
Guaranteed over temperature
Voltage Output
Ranges
0 to +1 V, 0 to +5 V, 0 to +10 V, -1 to +1 V, -5 to +5 V,
-10 to +10 V, software selectable
Output coupling
DC
Output impedance
0.1
Ω
max
Current drive
±
5 mA max
Load impedance
10,000 pF max
Protection
Short circuit to ground
Power-on state
-10 mV
Current Output
Range
0 to 20 mA
Type
Current sink with internal loop supply, no external
power required
Output impedance
109
Ω
min
Protection
Short circuit and open circuit
Power-on state
0
µ
A
1
Update rate depends on the computer and software you use. These tests were done using a 50 MHz 80486 DX/2
computer running LabWindows.