Measurement-computing PCIe-DAS1602/16 Instrukcja Użytkownika Pobierz pdf (Strona 16)

Chapter 3

Specifications

All specifications are subject to change without notice.

Typical for 25 °C unless otherwise specified.

Specifications in italic text are guaranteed by design.

Power consumption

3.3 V quiescent 500 mA typ, 750 mA max

12 V quiescent 100 mA typ, 150 mA max

User 5 V outputs 10mA

Analog input

A/D converter type LTC1605CSW

Resolution 16 bits

Number of channels (switch-selectable) 16 SE/8 DIFF

Input ranges

 Gain (software-selectable)



Unipolar/bipolar polarity (switch-selectable)

±10 V, ±5 V, ±2.5 V, ±1.25 V

0 V to 10 V, 0 V to 5 V, 0 to 2.5 V, 0 V to 1.25 V

A/D pacing (software-selectable) Internal counter: 82C54

Positive or negative edge (jumper-selectable)

External source: pin 25

Positive or negative edge (software-selectable)

Software polled

A/D trigger (only available when internal pacing

selected, software-selectable)

External edge trigger: pin 25

Positive or negative edge (software-selectable)

A/D gate (only available when internal pacing

selected, software-selectable)

External gate: pin 25

High or low level (software-selectable)

Simultaneous sample and hold trigger TTL output: pin 26 (jumper-selectable)

Logic 0 = Hold, Logic 1 = Sample

Compatible with CIO-SSH16

Burst mode (software-selectable) Burst interval = 10 us

Data transfer From 1024 sample FIFO via interrupt with REPINSW

Interrupt

Software polled

Interrupt INTA# - mapped to IRQn through PCI BIOS at boot-time

Interrupt enable Programmable through PCI9030

Interrupt polarity Active high level or active low level, programmable through

PLX9030

Interrupt sources (software-selectable) End of conversion

FIFO not empty

End of burst

End of acquisition

FIFO half full

A/D conversion time 10 µs max

Throughput



Single channel: 100 kS/s



Multi-channel: (100 kS/s)/(# of channels)

Common mode range ±10 V min

CMRR @ 60 Hz –100 dB typ, –80 dB min

Input leakage current ±3 nA max

Input impedance 10 MΩ min

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 22 23 24

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