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A great tech not on OP Amps driving capacitance. http://www.analog.com/library/analogDialogue/archives/31-2/appleng.html Q. How does capacitive loading affect op amp performance? A. To put it simply, it can turn your amplifier into an oscillator. Here's how: Op amps have an inherent output resistance, Ro, which, in conjunction with a capacitive load, forms an