Measurement-computing PC104-DAS08 Manuel d'utilisateur télécharger pdf (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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Measurement-computing PC104-DAS08 Manuel d'utilisateur Page 19