| Sample-rate options | 2048 Hz | 4096 Hz | 8192 Hz | 16384 Hz | |||||||||
| Max. number of channels @ selected sample rate | 144 | 112 | 48 | 16 | |||||||||
| Bandwidth (-3dB) | DC- 500 Hz | DC-1000 Hz | DC-2000 Hz | DC-4000 Hz | |||||||||
| Anti-aliasing filter response |
5th order Bessel
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| Digitalization |
16 bit, one converter per channel, synchronious
sampling
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| Sampling-rate accuracy | +/- 0.5 Hz | ||||||||||||
| Sampling skew |
< 20 ps
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| Quantization resolution |
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| Quantization resolution accuracy |
1 %
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| DC offset |
< 1 mV
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| Quantization noise |
0.3 µV RMS
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| Amplifier voltage noise, full bandwidth |
0.7 µVRMS
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0.9 µVRMS
|
1.4 µVRMS
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2.0 µVRMS
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| Amplifier current noise, full bandwidth |
< 100 fArms
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| 1/f noise (Ze < 1 M) |
2 µVpk-pk @ 0.1..10Hz
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| Total input noise (Ze < 10 k), full bandwidth |
0.8 µVRMS (5 µVpk-pk)
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1.0 µVRMS (6 µVpk-pk)
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1.4 µVRMS (8 µVpk-pk)
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2.0 µVRMS (12 µVpk-pk)
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| Input bias current, Active electrode |
< 30 pA per channel
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| Input impedance Active electrode |
> 100 M @ 50 Hz (1012 //
16 pF)
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| Signal Input range (> 0.16 Hz) |
66 mVpk-pk
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| Electrode offset range (DC-0.016 Hz) |
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| High-pass response |
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| Distortion | < 0.1 % | ||||||||||||
| Channel separation | > 96 dB | ||||||||||||
| Common Mode Rejection Ratio |
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| Isolation Mode Rejection Ratio | > 160 dB @ 50 Hz | ||||||||||||
| Power consumption | 2 Watt @ 144 channels, 0.3 Watt @ 16 channels | ||||||||||||
| Battery capacity | 25 Watthour, 3 cell sealed lead-acid | ||||||||||||
| Battery life | > 10 hours @ 144 channels, > 72 hours @ 16 channels | ||||||||||||
| Battery charge time (with external fast charger) | 3.5 hours @ 100 % charge | ||||||||||||
| Leakage current, normal operation | < 1 µA rms | ||||||||||||
| Leakage current, single fault | < 50 µArms @ 220 VAC | ||||||||||||
| Trigger inputs | 8 inputs on optical receiver (isolated from subject section) , TTL level | ||||||||||||
| Size of AD-box, including battery-box (H x W x D) | 120 x 150 x 190 mm | ||||||||||||
| Weight of AD-box including battery-box | 1100 gram | ||||||||||||
| Price (incl. electrodes, AD-box, 2 battery packs, charger, PCI interface card, receiver and basic software programmed in LabVIEW) | EUR 10,000 + EUR 200 per channel + EUR 30 per electrode (excl. VAT) | ||||||||||||
| Warranty | 3 years | ||||||||||||