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ni.com
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NI CF-6004 U
s
er G
u
ide and Specification
s
Sample rate (might be system-dependent)
Single-channel, finite acquisition
Up to 8 kS total, raw or calibrated ....200 kS/s
Up to 1 MS, raw data ........................200 kS/s
Multi-channel, finite acquisition
Up to 8 kS total, raw or calibrated ....132 kS/s, aggregate
Up to 1 MS total, raw data................132 kS/s, aggregate
Continuous acquisition, single- and multi-channel
Calibrated data, monitoring ..............18 kS/s, typical
Calibrated data, graphing..................1 kS/s, typical
Minimum hardware-timed ........................195 S/s
Timing accuracy................................................50 ppm
Timing resolution..............................................78.125 ns
Settling time......................................................20 ppm at 7.6
μ
s, 0.1
Ω
source impedance
Input coupling ...................................................DC
Input range ........................................................±5 V
Maximum working voltage...............................±5 V
Input impedance................................................100 M
Ω
, in parallel with 20 pF
Input bias current ..............................................75 pA
Crosstalk (at 1 kHz)
Adjacent channels .....................................–104 dB typical
Non-adjacent channels..............................–104 dB typical
Small signal bandwidth –3 dB ..........................497 kHz
System noise .....................................................0.75 LSB
rms
Input FIFO size .................................................8,192 samples
Data transfers ....................................................Programmed I/O
Overvoltage protection .....................................±8 V
Input current during overvoltage condition
Single channel...........................................8 mA maximum
Four channels............................................32 mA maximum
Accuracy over the operating range
Typical.......................................................±3.1 mV
Maximum..................................................±21 mV
Calibration
Recommended warm-up time...........................15 minutes
Calibration interval ...........................................1 year