InventorUS Classes330/253, Having field effect transistor330/254Having gain control meansAttorney, Agent or FirmInternational Class H03F 3/45 Issued Patent Number:7973605
Abstract textA three-stage frequency-compensated operational amplifier includes a first-stage circuit, a second-stage circuit incorporated with a first compensation circuit, a third-stage circuit, and a second compensation circuit. The three-stage frequency-compensated operational amplifier functions as a two-stage operational amplifier at high frequencies, thereby capable of driving large capacitive loads with low power consumption. |