National-instruments Isolated Analog Input Modules SCC-AI03 Manuel d'utilisateur télécharger pdf (Page 9)

Specifications

These ratings are typical at 25 °C unless otherwise stated.

Input Characteristics

Number of input channels ...................... 2 NRSE

Isolation.................................................. Bank isolation

(isolation per module

)

Input/output signal range, gain,

and bandwidth ........................................ Refer to Table 1

Input impedance

SCC-AI01, SCC-AI02 .................... 1 MΩ

All others......................................... 100 MΩ

Gain error ............................................... 4.5% max (trimmable to zero)

Gain stability .......................................... 150 PPM/°C

Offset error............................................. 40 mV max (RTI

)

Offset stability........................................ 225 μV/°C

Nonlinearity ........................................... 0.0128% typ

0.0260% max

Common-mode rejection ratio ............... 100 dB typical at 60 Hz

Output slew rate,

dependent on BW (filtering) .................. 0.8 V/μs max

Filter Characteristics

Number of poles..................................... 3

Rolloff .................................................... 60 dB/decade

Cutoff frequency (–3 dB)

AI0X................................................ 10 kHz

AI1X................................................ 4 Hz

The SCC-AI does not provide isolation between the two channels of the module. For more information, refer

to the Connecting the Input Signals section.

This specification is calculated relative to the input range of the module.

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National-instruments Isolated Analog Input Modules SCC-AI03 Manuel d'utilisateur Page 9