Measurement Computing PCIe-DAS1602/16 - Manual (Page 18)

PCIe-DAS1602/16 User's Guide Specifications
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Note 2: Noise performance may be affected by input cabling and/or excessive noise from adjacent PCBs within
the PC enclosure.
Crosstalk
Crosstalk is defined here as the influence of one channel upon another when scanning two channels at the
specified per channel rate for a total of 50,000 samples. A full-scale (FS) 100 Hz triangle wave is input on
channel 1, with channel 0 tied to analog ground at the 37 pin user connector. The table below summarizes the
influence of channel 1 on channel 0 and does not include the effects of noise.
Range 1 kHz Crosstalk
(LSB pk-pk) 10 kHz Crosstalk
(LSB pk-pk) 50 kHz Crosstalk
(LSB pk-pk)
±10.000 V 4 13 24
±5.000 V 3 7 18
±2.5000 V 2 5 16
±1.250 V 3 4 14
0 V to 10.000 V 4 8 23
0 V to 5.000 V 3 5 16
0 V to 2.500 V 2 4 16
0 V to 1.250 V 3 3 16
Analog output
D/A converter type MX7548
Resolution 12 bits
Number of channels 2
Channel type SE voltage output
Output range (jumper-selectable per
output) ±10 V, ±5 V, 0 to 10 V, or 0 V to 5 V using onboard references, or user-defined
using external reference
Reference voltage (jumper-selectable) On-board, –10 V and –5 V
External;
independent (D/A0 REF IN pin 10 and D/A1 REF IN/SSH OUT pin 26)
External reference voltage range ±10 V max
External reference input impedance 10 k
Ω min
Data transfer (system-dependent) Programmed I/O
Monotonicity Guaranteed monotonic over temperature
Slew rate 2.0 V/µs min
Settling time 30 µS max to ±½ LSB for a 20 V step
Current drive ±5 mA min
Output short-circuit duration Indefinite @ 25 mA
Output coupling DC
Output impedance 0.1
Ω max
Output stability Any passive load
Coding Offset binary
 Bipolar mode
0 code = Vref
4095 code = –Vref – 1LSB, Vref < 0 V
–Vref + 1LSB, Vref >0 V
 Unipolar mode
0 code =0 V
4095 code = –Vref – 1LSB, Vref < 0 V
–Vref + 1LSB, Vref >0 V
Output voltage on power up and reset 0 V ± 10 mV