In this paper, a new grounded positive lossless frequency dependent negative resistance (FDNR) simulator and two of its applications are presented. The proposed FDNR uses single OTRA and requires five number of passive components; two resistances and three capacitances. The workability of the proposed simulator is demonstrated through the realization of a single resistance controlled oscillator (SRCO) and a fifth order elliptic filter. A detail non-ideality analysis is also done for both FDNR and SRCO. In addition the sensitivity, non-ideality effect and frequency stability analysis of SRCO have been presented. Monte Carlo simulation of the SRCO output has been given and discussed. Moreover, the layout of OTRA, FDNR and SRCO and their post layout simulations in 180 nm are given. PSPICE simulation and experimental results are included to verify theory.