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RF-T-Multiplier1.php    6002 Bytes    28-09-2020 21:34:53


Multiplier


RF TOOLBOX 3599 EDITION






The assembled prototype




✈ Motivation




This is a Building Block for our Quantum Experimenters. It has turned out, that, unless our Quantum Computer is running at full speed, such Arithmetic Modules still are very useful for some side experiments.

Also a lot of former members ask for such devices - so here it is ...




✈ Functional Description




The workhorse of this nifty devices is the AD633 (Low Cost 4-Quadrant Analog Multiplier). The Inputs are buffered with an OP07 (Ultralow Offset Voltage Operational Amplifier). They present an input Impedance of 100 kΩ whilst maintaining a low output Impedance.

If more speed is necessary, they mayst be exchanged. We used sockets for all of the DIL-8 circuits. (This also allows for fast repair - just in case :-)

The AD633 has differential Inputs from which the negative input as well as the Offset Input is clamped to GND, 0 V by a Jumper. This allows easy modification, once a different functionality deems necessary.

Finally, another OP07 buffers the "Result". With another Jumper a Gain of 1 or 10 mayst be selected.

All Inputs and outputs span a range from - 10 V upt to + 10 V. Speed varies with used OPAMP and selected GAIN.




✈ Accessories




• Power Supply, e.g. Leomod
• Lemo Cable, e.g. this or that.




✈ Downloads








✈ Share your thoughts



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t1 = 6586 d

t2 = 179 ms

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