Measurement Computing CIO-DAS08-PGH - Manual (Page 25)

5: SPECIFICATIONS
Power consumption
+5V: 900 mA typical, 1125 mA max
Analog input section
A/D converter type AD574
Resolution 12 bits
Number of channels 8 differential (configurable as quasi-differential via installation of SIP resistor)
Input Ranges
CIO-DAS08/PGH ±10V, ±5V, ±1V, ±0.5V , ±0.1V, ±0.05V, ±0.01V, ±0.005V, 0 to 10V, 0 to 1V, 0 to
0.1V, 0 to 0.01V software selectable
CIO-DAS08/PGL ±10V, ±5V, ±2.5V, ±1.25V, ±0.625V, 0 to 10V, 0 to 5V, 0 to 2.5V, 0 to 1.25V
software selectable
CIO-DAS08/PGM ±10V, ±5V, ±0.5V, ±0.05V, ±0.01V, 0 to 10V, 0 to 1V, 0 to 0.1V, 0 to 0.01V
software selectable
Polarity Unipolar/Bipolar, software selectable
A/D pacing Internal counter or external source (Interrupt Input, jumper selectable, rising edge) or
software polled
A/D Trigger sources External hardware/software (Digital In 1)
Data transfer Interrupt or software polled
DMA None
A/D conversion time 25 µs
Throughput 20 kHz, PC dependent
Accuracy ±0.01% of reading ±1 LSB
±0.05% of full scale
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 Meg Ohms min
Absolute maximum input voltage ±35
Digital Input / Output
Digital Type (main connector)
Output: 74LS273
Input: 74LS244
Configuration 4 fixed output bits, 3 fixed input bits
Number of channels 4 out, 3 in
Output High 2.7 volts min @
−
0.4mA
Output Low 0.4 volts max @ 8 mA
Input High 2.0 volts min, 7 volts absolute max
Input Low 0.8 volts max,
−
0.5 volts absolute min
Interrupts 2 - 7, jumper selectable
Interrupt enable Programmable
Interrupt sources External (Interrupt In), rising edge
21