> D.C. DIFFERENTIAL AMPLIFIER WITH REMOTE PROBE
D.C. DIFFERENTIAL AMPLIFIER WITH REMOTE PROBE
Company : Bak Electronics Inc
UMDC Code : 102485
The Model DCDA-l is a high performance preamplifier designed for both low level A.C. neurological and cardiac signals from high impedance electrodes as well as slow wave phenomena such as D.C. potential shifts associated with sucrose gap type experiments. It is provided with capacitive feedback neutralization which is controlled from the main unit front panel to nullify the shunting effect of stray capacitance existing across higher impedance electrodes. The amplifier utilizes a small, very high impedance differential head stage with driven guard inputs to minimize noise pick-up and capacitive signal loss. The probe is small enough to be mounted close to the preparation. It comes equipped with + input leads, a preparation ground lead, a virtual ground input lead for measuring currents and a stimulus input mini-banana jack for applying -an external stimulus source to the + electrode. Currents monitored by the virtual ground input lead are converted to a 50 millivolt per microamp signal which is available at the lout BNC connector on the main front panel. The stimulus mode is configured via probe stage relays which are activated from the mode switch. When the mode switch is in the STIM position the positive input is grounded and the electrode re-connected to the stimulus source. In the GATE position of the mode switch the same process is achieved by providing a TTL compatible signal to the front panel BNC label GATE IN.
Product URL : http://www.bakelectronicsinc.com/2-5.html
Last Updated : 03/16/2013