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BMA-200 AC-DC BIOAMPLIFIER
(Model: BMA-200)
High-performance portable extracellular amplifier

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Presentation

The BMA-200 is the latest in our line of high-performance preamplifiers. Its versatility and wealth of features make it equally at home in the laboratory or as a rugged field instrument. It is a low-noise, portable, battery operated amplifier for EEG, ECG, EMG, and other extracellular applications.

Key features

The BMA-200 features a wide gain range, sharp cutoff bandpass filters, an AC calibrator, and a built-in audioamplifier and speaker for monitoring the signal. Stimulus delivery to the electrodes is accomplished by a front-panel switch, or via an external logic signal. True DC response is switch-selectable, with a variable DC offset control. Low-power circuitry contributes to long operating time between charges, or the unit can be operated continuously with the included AC adapter. It can be used as a stable DC amplifier, and includes adjustable DC input offset controls.

Positive and negative DC voltages are provided at the input connector for bridge excitation or powering optional head-stage active probes. For human subject recording, the ISO-Z Isolation Amplifier head-stage should be used. Active probes are available for high-impedance microelectrode applications. The BMA-200 is fully compatible with the complete line of cables, electrodes, and other accessories available for the BMA-931 modular amplifier.

Options

• 220V charger/adapter
• Pre-wired input cable
• ISO-Z Isolation head-stage
• Electrodes
• Spare connectors & pin plugs

Note: Not to be used for human life support applications.
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Input type and impedance Differential instrumentation amp, > 109 ohms
Wideband noise, RTI <7mV P-P
Common Mode Rejection >95dB
Gain range 10X - 50,000X, 12-positions
Coupling AC or DC, switchable
Input connector Amphenol 703-91T-3478-009 7-pin
Input offset adjustment ranges +2mV, +20mV, +200mV, jumper selectable
Voltages at input jack for external devices +7.2V, 20mA max current
AC calibrator 1mV P-P square wave, approx. 10Hz
Low-pass filter 100Hz - 50kHz, 6-positions
High-pass filter DC - 300Hz, 6-positions
Filter type, slope Butterworth, flattest response, -12dB/octave
Stim/record input TTL negative logic, or switch closure
Stimulus inputs (rear panel) 2mm (0.080”) pin jacks
Audio amplifier 200mW, built-in mylar speaker
Audio output connector 3.5mm stereo mini-phone jack
Output connector (rear panel) BNC jack
Operating time between charging Approx. 24 hours
Power adapter/charger 24VDC
Dimensions 6W x 1.75H x 7D inches, 15 x 4.5 x 18 cm

Model:
BMA-200
BMA-200 AC-DC Bioamplifier
Contact us

Related products:
BMA-400
BMA-400 AC-DC Bioamplifier
four channels, low-noise Contact us
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Bioseb - In Vivo Research Instruments
Phone worldwide : +33 442 344 360 - USA/Canada : (727) 521-1808
e-Mail : Worldwide: info@bioseb.com - USA/Canada: info-us@bioseb.com