National Instruments SCC-PWR02, User Manual

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© National Instruments Corporation 7 SCC-LP Series Lowpass Filter Modules User Guide
Input bias current ................................... ± 2 nA typ
± 5 nA max
1
Nonlinearity ........................................... 0.004% of full scale
Filter Characteristics
Filter type ............................................... Fourth-order Butterworth
lowpass
Rolloff rate ............................................. 80 dB/decade
–3 dB cutoff frequency (fc)
SCC-LP01 ....................................... 25 Hz
SCC-LP02 ....................................... 50 Hz
SCC-LP03 ....................................... 150 Hz
SCC-LP04 ....................................... 1 kHz
Passband ripple
System Noise
Total harmonic distortion (THD) at fc ... < –90 dB
Wide-band noise
(DC to 1 MHz, RTI)............................... 100
µ V
rms
Narrow-band noise
(DC to 33 kHz, RTI) .............................. 6
µ V
rms
1
Applicable at 25 °C.
Input Signal Typical Maximum
DC to 1/3 fc ± 0.04 dB 0 ± 0.1 dB
DC to 1/2 fc ± 0.06 dB 0 ± 0.2 dB
DC to 2/3 fc –0.2 ± 0.25 dB –0.2 ± 0.4 dB
DC to fc –3 ± 0.3 dB –3 ± 0.5 dB