Abstract: A recently proposed gain- and offset- compensated (GOC) fully differential switched-capacitor (SC) integrator is presented. The resulting gain, phase and offset errors are simultaneously lower when compared to the uncompensated balanced Hsiech-81 integrator. Both the integrators are used as building blocks of two SC second-order balanced all-pass networks. To demonstrated the superiority of the new integrator the two all-pass topologies were designed for a given transfer function and then compared in terms of four performances comprising sensitivities to finite op. amp. gain and offset voltage, capacitance spread and total capacitance. The component counts are also compared.
Key words: Filters, gain compensation, offset compensation, operational amplifiers, switched-capacitor integrators.