Sample-rate options:	2048 Hz	4096 Hz	8192 Hz
Max. number of channels @ selected sample rate:	128	64	32
Bandwidth (-3dB):	DC.. 400 Hz	DC..800 Hz	DC..1600 Hz
Low-pass response:	4th order Bessel
Digitalization:	16 bit, one converter per channel
Sampling skew:	< 20 ps
AC quantization-resolution (0.3 Hz .. LP cutoff freq.):	500 nV/bit
DC quantization resolution (DC.. 0.01 Hz):	16 µV/bit
Quantization resolution accuracy:	1 %
DC offset:	< 70 µV with unequalized output, < 2 mV with software equalizer (< 0.2 % of full scale)
Quantization noise:	0.2 µV RMS
Amplifier voltage noise:	0.7 µVRMS	0.8 µVRMS	1.0 µVRMS
Amplifier current noise:	< 30 fArms
1/f noise (Ze < 1 M):	2 µVpk-pk @ 0.1..10Hz
Total input noise (Ze < 10 k):	0.7 µVRMS (4 µVpk-pk)	0.8 µVRMS (5 µVpk-pk)	1.0 µVRMS (6 µVpk-pk)
Input bias current:	< 30 pA per channel
Input impedance:	> 100 M @ 50 Hz (1012 // 16 pF)
AC input range (0.3 Hz..LP cutoff freq.)	33 mVpk-pk (16 bits)
AC dynamic range (0.3 Hz..LP cutoff freq) :	78 dB	76 dB	75 dB
DC input range (DC.. 0.01 Hz):	+/- 500 mV (21 bits)
Distortion:	< 0.1 %
Common Mode Rejection Ratio:	> 150 dB @ 50 Hz
Isolation Mode Rejection Ratio:	> 160 dB @ 50 Hz
Supply current per channel:	4 mA	7 mA	12 mA
Back-up battery capacity (6V sealed, lead-acid):	4500 mAh
Battery charge time (with external fast charger):	3.5 hours @ 100 % charge
Power box (safety isolation and back-up battery):	11..13 VDC in; 6.8 VDC out
Mains adapter:	85..264 VA, 50/60 Hz in; 12 VDC out (SELV)
Leakage current, normal operation:	< 1 µA rms
Leakage current, single fault :	< 10 µArms @ 220 VAC
Trigger inputs:	8 inputs on optical receiver (isolated from subject section) , TTL level
Size of front-end, including power-box (H x W x D):	118 x 138 x 190 mm for up to 64 channels 141 x 138 x 190 mm for 64..128 channels
Price (incl. mains adapter, fast charger, PCI interface card,  and basic software programmed in LabVIEW):	EURO 12,000.- + 200,- per channel (excl. VAT)
Warranty:	3 years