|  | EEG-1142 amplifier. | 
General.
| BRAINBOX® EEG-1142 Amplifier. This “smallest of the world” EEG amplifier measures only 9 x 10 x 1 cm and weighs less than 100 gram. Indeed very small, but with excellent performance! The Digital FIR filters have a linear phase response and attenuate -40dB (!)at ½ Sample Rate for very low aliasing errors in your analysis results. The very small size of the amplifier is convenient for ambulatory recording. The EEG-1142 has full electrode impedance check circuits and in Calibration mode the Calibration Voltage is applied to the real input of the amplifiers for a real overall test of the amplifier. Active ground G1/G2 suppresses 50/60 Hz. in noisy environments and SpO2 and Event button are supported in this amplifier. Additionally to the 32 EEG channels, there are 8 DC channels for recording the output of special sensors. More EEG-1142 amplifiers could be used for multiple patient recording with one interface and one PC. |  | ||
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Amplifier specifications.
| BRAINBOX® EEG-1142 Amplifier | |
| Designed for ultra portability and patient convenience in smallest possible case |  | 
| Designed for maximum system flexibility regarding EEG- and DC channels, while maintaining the possibility of a large number of EEG channels by adding other amplifiers. (Max. 224 EEG channels) |  | 
| EEG Channels have digital FIR filter with linear phase and -40 dB at 1/2 sample rate | 32 | 
| DC channels | 8 | 
| G1/G2 active Gnd. for suppression of mains interference in noisy environments |  | 
| Clip-on connector for direct Electrode Cap connection | 68 pin | 
| Large Touchproof input box connectable with flat cable for flexibility | |
| Stackable Touchproof input box for ultra portability | |
| Touchproof input box with holder slot for amplifier and mounting possibility on a microphone stand. | |
| SpO2 input |  | 
| EVENT input |  | 
| Separate SpO2 |  | 
| Separate EVENT |  | 
| Power and control over Daisy chain BRAINBUS Connection. Low voltage power supply. (5 V dc) |  | 
| BRAINBUS Address automatically selected by INBOX channel range | 2 | 
| Real input calibration, calibration voltage is applied to electrode input |  | 
| Electrode impedance check with indication in EEG application running on PC |  | 
| Extended Brainbox protocol |  | 
Extra information:
