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產品資訊

單頻道差分放大器 AC/DC Differential Amplifier

產品型號: 3000
廠牌名稱: A-M Systems
A-M Systems Model 3000 單頻道差分放大器是一部可進行低阻抗 (1.5 MΩ) 電訊號記錄的低噪放大器,您可以使用低阻抗電極(白金或更高階金屬電極)進行電生理訊號記錄,或是選配10倍放大器(Headstage)搭配高阻抗的玻璃或金屬電極進行更專一的電訊號記錄。

Model 3000 單頻道差分放大器可用來進行,但不限於下列實驗:
場電位(field potential)記錄
誘發電位記錄
一般生物電位記錄(EXG)
長期增益現象(LTP)
單一細胞動作電位(需搭配特定放大器)

產品特點

The Model 3000 AC/DC Differential Amplifier is designed for low-noise recordings from excitable tissue using low impedance (<1.5 MΩ) electrodes. When paired with an optional x10 gain headstage, the Model 3000 is perfect for single cell recordings using high-impedance glass or metal microelectrodes.

 

Common applications include, but are not limited to:

Multiple-Unit Recordings

Evoked Potentials

EEG/EMG/EKG/ERG recordings

Long-term Potentiation

Single Cell Action Potentials (with optional headstage)

 

This single-channel amplifier is packed full of features to accommodate your specific instrumentation requirements, yet fits into a compact enclosure for convenient placement in the lab. The standard input consists of a twisted-pair cable with an active shield. The ends of the cable are left bare to be wired to your input device.

As an option, a headstage can be used to pre-amplify the input signal for high impedance glass or metal microelectrodes. The input mode can be set for either differential or single-ended recordings.

External stimulus generators can be easily used with the Model 3000 via the front panel stimulus input BNC. Stimulus mode channels any signal present at the stimulus BNC directly to the electrodes, bypassing the internal recording circuitry. At the same time, the amplifier switchs to a current monitor mode, and measures the actual current passing through the electrode. Both stimulus and recording modes can be controlled through an external gate signal, allowing for computer controlled switching.

During recording, the input can be amplified from 50 to 10,000 times in both DC and AC modes. A high-resolution DC Offset adjustment is available up to ±1V, with both Fine and Coarse adjustment controls. High Pass, Low Pass, and Notch Filters offer wide frequency selectivity. Like all of our amplifiers, gain and filter settings can be customized to your particular requirements. The small size of the amplifier and remote power supply offers the advantage of placing the amplifier next to the experimental set up, or within a Faraday cage with minimal power-line interference.

產品規格

  • Noise: 1.8 µV, p-p (10 Hz–10 kHz); 0.1 fA/Hz at 1 kHz 
  • Input impedance: 1015 Ohms || 1 pF 
  • Initial bias current: ±1.0 fA, typical 
  • Maximum differential signal: 200 mV with ±250 mV offset 
  • Capacity compensation: -4–50 pF 
  • External power supply for low noise 
  • Gain and filter settings are factory customizable upon request 

 

The Model 3000 includes:

  • Operator's manual and Rack mount hardware
  • Remote international power supply
  • 3-Foot Input cable (Catalog#: 910400)
  • Black, green and red mini headstage connector cables

 

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