A/D Interface Modules




NL201 – Spike Trigger
A gated amplitude discriminator for neuronal spike detection and detection of other events which produces separate output pulse trains for spikes which (i) cross the upper voltage threshold, (ii) cross the lower voltage threshold or (iii) cross the lower but not the upper threshold. Two potentiometers control window height and aperture settings.



NL601 – Pulse Integrator
The NL601 has a digital counter which produces an analogue output proportional to the count. A pulse at the input socket increments the counter towards a full scale count of 255, 2550 or 25500 which is selectable by the front panel scale switch. The counter will continue to increment on input pulses until the unit is reset.

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