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BMA-200是一款便攜式電池供電放大器，適用于EEG、ECG、EMG和其他細(xì)胞外應(yīng)用。BMA-200具有寬增益范圍、銳截止帶通濾波器、交流校準(zhǔn)器和內(nèi)置音頻放大器和揚(yáng)聲器，用于監(jiān)控信號(hào)。通過(guò)前面板開(kāi)關(guān)或通過(guò)外部邏輯信號(hào)來(lái)實(shí)現(xiàn)對(duì)電極的刺激傳遞。真正的DC響應(yīng)是開(kāi)關(guān)可選的，具有可變DC偏移控制。低功率電路有助于延長(zhǎng)充電之間的工作時(shí)間，或者該裝置可以使用附帶的交流適配器工作。它具有穩(wěn)定的DC操作，并包括可調(diào)DC偏移。

包括一條標(biāo)準(zhǔn)輸入電纜，可與多種電極引線兼容。有源頭臺(tái)也可用于微電極應(yīng)用..

標(biāo)準(zhǔn)功能

• For all extracellular recording applications
• Battery or AC operation
• Low noise, wide gain range
• Built in audio amp and speaker
• True DC response with offset
• Rugged laboratory or field amplifier
• Stimulus passing to electrodes
• Isolation head-stage (ISO-Z) and high-impedance head-stage (HS-1) are available

規(guī)范

• Input type and impedance: Differential instrumentation amp, > 10⁹ ohms
• Wideband noise, RTI: <7uV 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

Note 1: Not to be used for human life support applications.