Design of rail-to-rail operational amplifier with offset cancelation in 90nm technology
Daniel Arbet, Gabriel Nagy, Gábor Gyepes, Viera Stopjaková
Abstract
Daniel Arbet, Gabriel Nagy, Gábor Gyepes, Viera Stopjaková
Abstract
This paper deals with the design of a rail-to-rail operational amplifier (OPAMP) for a digital-to-analog converter. To achieve a low input offset of the OPAMP, a digital offset cancelation method has been proposed and used. The offset voltage in the range from −1.4 mV to 1 mV can be achieved. The OPAMP and additional hardware were designed in 90nm CMOS technology.
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This paper deals with the design of a rail-to-rail operational amplifier (OPAMP) for a digital-to-analog converter. To achieve a low input offset of the OPAMP, a digital offset cancelation method has been proposed and used. The offset voltage in the range from −1.4 mV to 1 mV can be achieved. The OPAMP and additional hardware were designed in 90nm CMOS technology.
Key concepts: Operational amplifier, Input offset voltage, Offset (computer science), Op amp integrator, CMOS, Electronic engineering, Amplifier, Engineering