natus Olympic Brainz - DAU specifications; Band pass filter; High pass filter; Analogue to digital converter

Specifications
Brainz BRM3 Brain Monitor Reference Manual | 37
DAU specifications
Band pass filter: -3 dB at 0.3 Hz and 150 Hz
Bandwidth: 0.3 - 128 Hz
Analogue to digital converter: Delta sigma (1 per channel)
Sampling rate: 256 samples/sec with 512 times
oversampling
Resolution: 21 bits effective at 256 Hz
Input impedance: 33 M
Ù in parallel with 4.7 nF
Allowed DC offset:
± 0.35 VDC at input
Noise: < 1
μ Vp-p
Common mode rejection: >137 dB
Environmental specifications
The following environmental conditions must be maintained to avoid damage to the BRM3 Brain
Monitor.
Operation (all components)
Temperature: 0 to 40 °C (32 to 104 °F)
Relative humidity: 25 to 90% at 40 °C (non-condensing)
Shipping and storage (all components)
Temperature: -20 to 60 °C (-4 to 140 °F)
Relative humidity: 25 to 95% at 40 °C (non-condensing)
Standards compliance information
The BRM3 Brain Monitor and its accessories have been designed to comply with the following
international and national standards.
International standards National standards
IEC 60601-1 AS/NZS 3200.1.0
IEC 60601-1-1 EN 60601-1
IEC 60601-1-2 CAN/CSA C22.2 No. 601.1
IEC 60601-2-26 UL 60601-1