Because of high input impedance required to maximize CMRR, High impedance balance output circuit shown in figure below , has been used for the input impedance is determined solely by the input bias resistance R1 and R2. High impedance balance output circuit also useful for interfacing with valve equipment in the strange world of retro-hi-fi.
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Senin, 28 Maret 2011
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High impedance balance output circuit
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