Getting Instruments 隔离放大器 4-AD

Getting Instruments 隔离放大器 4-AD 

描述:    
The Model 4AD Stimulus Isolation Amplifier (SIU) is a low-noise optical isolation amplifier design to optically isolate electrical stimulating currents.  

操作要点:    
Operates as BOTH a digital and a linear isolator, ZERO leakage current, high compliance (100VDC), ZERO power on spikes (maintains short circuit across electrode when off), low battery indicator, voltage or current output, good step response, biphasic.  

操作原理:    
Inputs: The input mode is either analog (linear) or digital. In the analog/linear mode the output current level is proportional to the amplitude of the input voltage signal. Analog Input range is 0-10V. A negation switch allows negative input voltages. Digital input is TTL and CMOS compatible. Both inputs are BNC and are selectable with a toggle switch on the front panel or via digital control.   
Output: Output is either a current source or a voltage source (set by a toggle switch). Therefore unit operates as a Voltage Controlled Current Source (VCCS) or a Voltage Controlled Voltage Source (VCVS). The output polarity can be set to allow biphasic operation in the digital mode. Output connector is BNC and the mode (current or voltage), along with the polarity (+ or -) is selectable with a toggle switch on the front panel.   

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