A low noise compact class AB buffer amplifier with accurate quiescent current control |
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Authors: | Jian Lv Yun Zhou DongLu Zhang YaDong Jiang |
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Affiliation: | (1) State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, China |
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Abstract: | The authors present a new low-noise class AB buffer amplifier. The proposed buffer amplifier achieves a low noise with fast settling time and low power consumption. The buffer amplifier circuit attains an input referred noise voltage of 12.8 \( {{\text{nV}} /{\sqrt {\text{Hz}}}} \), a DC gain of 108 dB, a unit-gain frequency of 8 MHz, and rising slew rate of 36 V/μs, as the load capacitance equals 150 pF. The circuit is power efficient when driving large capacitive loads and is well suited for low noise low power analog video buffer applications. |
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