| Citation: |
Wang Weizhi, Jin Dongming. A Rail-to-Rail Input/Output Amplifier Using Common-GateFrequency Compensation[J]. Journal of Semiconductors, 2006, 27(11): 2025-2028.
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Wang W Z, Jin D M. A Rail-to-Rail Input/Output Amplifier Using Common-GateFrequency Compensation[J]. Chin. J. Semicond., 2006, 27(11): 2025.
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A Rail-to-Rail Input/Output Amplifier Using Common-GateFrequency Compensation
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Abstract
A rail-to-rail input/output CMOS amplifier using common-gate compensation is proposed.The amplifier achieves a unity gain frequency of 25MHz while employing only one compensation capacitor.The power dissipation of the circuit is 1.34mW with a supply voltage of 5V and a biasing current of 20μA.Using the proposed circuit,a unity gain buffer is also implemented with a supply voltage of 3V and driving a capacitive load of 150pF.A THD of -51.6dB is obtained for a 2.66VPP 10kHz input sine signal.Simulated results reveal a high slew-rate and large driving capability.This amplifier is fabricated in CSMC 0.6μm CMOS mixed-signal technology.The test results are also provided.-
Keywords:
- rail-to-rail,
- buffer,
- amplifier,
- CMOS
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References
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Proportional views
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