The NL800A is a battery powered, opto-coupled isolator (replacing the NL800). It has a constant current output, with very high output impedance, making it suitable for stimulation through microelectrodes as well as with gross electrodes. Normally driven from the NL510 or NL512 buffer modules, its output current is either set by the 10-turn control on the NL510 within the output range set by the switch on the NL800A, or by the amplitude of the waveform applied to the NL512. Output pulses have the same timing as the input pulses (2 microseconds to 30 seconds output pulse width). The NL800A is supplied with a set of batteries, a pair of 1mm output plugs and heat shrink sleeving.
For full web page, please see http://www.autom8.com/ds2a-stimulator.html
Download a User's Manual at http://www.autom8.com/docs/nl800.zip
Download a brochure at http://www.autom8.com/pdfs/amplifiers/DS2a-DS3-stimulator.pdf