AC/DC Differential Amplifier Model 3000
External stimulus generators (such as the Model 2100) can be easily used with the Model 3000 via the stimulus input. The stimulus mode allows the current passing through the electrode to be measured during stimulation at gain levels from 5 mV/µA to 1 V/µA. Both stimulus and recording modes can be controlled through an external gate signal, allowing for computer controlled switching.
The Model 3000 provides a complete set of precision controls, allowing maximum control over stimulus and recording operations. 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 ±250 mV, using Fine and Coarse adjustment controls. High Pass, Low Pass, and Notch Filters offer wide frequency selectivity.
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.