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BMA-931 Biopotential Amplifier

For Biopotential Signals Such As ECG, EMG, ENG, EGG, etc.

• High Gain to x50,000 (Up to 500,000 With a Head-Stage)
• Balanced Differential Inputs For Low Noise Measurements
• Selectable High-Pass and Low-Pass Corner Frequencies
• Applicable to a Wide Range of Biopotential Measurements (EMG, ECG, EOG, etc.)
• Selectable AC/DC Coupling

Download the BMA-931 Biopotential Amplifier Data Sheet

	Note: Pricing outside the U.S. will be higher to account for shipping, taxes, duty, currency fluctuation, local warranty and technical support in your country.
	Part Number Description Price (US) DATAQ Store BMA-931 Biopotential amplifier for electrophysiology $960 Quantity:

Product Highlights

The BMA-931 is a high performance, low-noise, AC/DC preamplifier. It's well suited for conditioning a variety of biopotential signals, including ECG, EEG, EMG, EGG, ENG, and evoked potentials. The modular design, wide gain range, sharp cutoff bandpass filters, and true DC response make the BMA-931 an excellent choice as a primary recording amplifier Plugging the low-noise ISO-Z isolated head-stage into the BMA-931 makes an ideal combination for recording signals from human subjects. For high-impedance intra-cellular or extra-cellular microelectrode work, just plug the super-Z ultra-high input impedance head-stage into the BMA-931. When isolation or ultra-high input impedance aren't required, the BMA-931 can be used alone for economical performance.

BMA-931 Specifications⁽¹⁾

• Input type: differential, balanced to chassis common
• Input range: ±6V
• Input impedance: >10⁹Ω
• Wideband noise (referred to input): <5μV P-P
• Common mode rejection: >110dB @ 60Hz
• Gain range: 50 to 50,000 in 10 steps(2)
• Filter cutoff slope: -12dB/octave
• High frequency filter: 100 to 50,000 Hz in 6 positions
• Low frequency filter: DC to 300 Hz in 6 positions
• Input connector: Amphenol, 7-pin socket
• Output range: ±10V
• Output offset (position) range: ±3V
• Output connector: BNC
• Power requirements: ±12VDC @ 50mA
• Dimensions: 2¾W × 5H × 10D (inches)

(1) The BMA-931 IS NOT to be used for human life support applications.
(2) Gain extended to x500,000 with head-stage.