Abstract
A high-swing, high-drive CMOS buffer amplifier, with good stability over a wide range of capacitive and resistive loads, is presented in this paper. A new area efficient output stage with a relatively small compensation capacitor has been used so that the circuit occupies only 120 mils2 in a 3 μm CMOS technology. The buffer has a drive capability of 110 kHz into a 5000 pF load with a rail-to-rail output swing for load resistances greater than 10 kΩ and acceptable total harmonic distortion with loads down to 270 Ω.
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