Alpha200

The Alpha200 amplifier has been designed as a more economical solution where the power, features, and 4-channel capability of the Alpha400 are not required. The Alpha200 features 2 EEG input channels, and 2 auxiliary input channels. Each EEG input has a dedicated pair of bipolar input jacks. The Alpha200 shares many of the features of the Alpha400, such as:

Fully USB powered and isolated

Fixed internal 10Hz / 25uV calibrator

True 3-position analog gain control

Switchable powerline notch filtering

Remote PowerON / PowerOFF and AUX Enable / Disable

	SPECIFICATIONS:

	Number of Channels:		2 EEG channels (each channel has an active and REF input) + 2 DC AUX channels
	Input Noise:		1.0uVs p-p referred to input
	Input Impedance:		> 10 Gig Ohms
	CMR:		> 100dB
	EEG Input Range:		Selectable as: 50uV, 100uV, or 500uV p-p Full Scale
	AUX Input Range:		0 to 1.0 VDC (isolated)
	BandPass:		0.5Hz to 55Hz (at the -3dB points)
	PowerLine Rejection:		> 50 dB
	Notch Filter:		Selectable as: 50Hz, 60Hz, or OFF
	Impedance Test:		Simultaneous test of all electrodes (range: 1K to 50K ohms)
	Calibration:		Fixed 10Hz at 25uV p-p
	A-D Resolution:		16 bits
	Sample Rate:		256 Samples/second
	Interface:		Isolated USB interface
	Power:		All power derived from USB cable (no batteries required)
	Isolation:		Medical grade digital isolation per UL1577 Component Recognition Program.
			Each isolator fully tested at 3000V RMS for 1 second, and 2500V RMS for 1 minute.
			Internal isolated DC-DC converter rated at 6000VAC isolation.