2009 · 17 citations · 2 references
EngineeringComputer EngineeringElectrical EngineeringMicroelectronicsSemiconductor DevicesVlsi DesignCmos Circuit DesignDigital Integrated Circuit DesignIntegrated Circuit DesignMixed-signal Integrated Circuit DesignMixed-signal IntegrationCmos Inverter DesignCmos Logic CircuitsCmos Logic DesignComplementary Metal-oxide-semiconductor Inverter DesignHigh-speed Circuit DesignHigh-speed Cmos DesignInvertersSpeed
A methodology for designing CMOS inverter-based output buffers considering speed, gain, jitter, and drivability requirements is presented. In this methodology, the band-broadening technique of the classic Cherry-Hooper amplifier is adapted for CMOS inverters. A buffer designed in this manner offers higher speed than a commonly used simple chain of inverters with exponentially increasing gate widths. The buffer is implemented by making minor modifications to a 4-stage CMOS inverter chain. The proposed design is suitable for output buffers for high-speed CMOS logic circuits.
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