Abstract: The circuit realizations of lossless and lossy integrators using active devices like opamp, OTA and MOS device have been discussed. The realization of integrator in single ended and fully differential configurations is considered. The voltage-mode and current-mode integrators reported in the literature have been considered. The realization of OTA-based transadmittance type integrator has been considered.
Keywords: Opamp; Operational Transconductance Amplifier (OTA); Lossless and lossy integrator; Voltage-mode and current-mode integrator