This paper presents a 1-V three-stage fully differential amplifier with buffered nested-Miller compensation. A transconductance stage is inserted in the feedback path to eliminate the right half plane (RHP) zero. In addition, a feedforward transconductance is used to enhance output large signal response. Using a standard 0.35-ÃÂ¿m CMOS technology, measurement results demonstrate that DC gain greater than 90dB, gain-bandwidth product of 4.57MHz, and phase margin of 55ÃÂ° is achieved with 100pF output loads. The settling time for a 1-Vpp step is 2ÃÂ¿s. All the circuits dissipate 110ÃÂ¿W under a single 1-V power supply.