Measurement Computing PC104-DAS08 - Manual (Page 19)

4 SPECIFICATIONS
Power Consumption
+5V: 130 mA typical, 185 mA max
+12V: 18 mA typical, 25 mA max
−
12V: 12 mA typical, 18 mA max
Analog Input Section
A/D converter type AD674
Resolution 12 bits
Number of channels 8, single-ended
Input Ranges ±10V, ±5V, 0 to +10V, switch selectable
Polarity Unipolar/Bipolar, switch selectable
A/D pacing Internal counter or external source
(Interrupt Input, jumper selectable, rising
edge) or software polled
A/D Trigger sources External polled gate trigger (Digital In 1)
Data transfer Interrupt or software polled
DMA None
A/D conversion time 15 µs
Throughput 20 kHz, PC dependent
Accuracy ±0.01% of reading ±1 LSB
Differential Linearity error ±1 LSB
Integral Linearity error ±0.5 LSB
No missing codes guaranteed 12 bits
Gain drift (A/D specs) ±25 ppm/°C
Zero drift (A/D specs) ±10µV/°C
Common Mode Range ±10V
CMRR 72 dB
Input leakage current (@25 Deg C) 100 nA
Input impedance 10 MegOhms min
Absolute maximum input voltage ±35V
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