TY - JFULL AU - E. Farshidi PY - 2009/5/ TI - A New Approach to Design Low Power Continues-Time Sigma-Delta Modulators T2 - International Journal of Electrical and Computer Engineering SP - 824 EP - 831 VL - 3 SN - 1307-6892 UR - https://publications.waset.org/pdf/10914 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 28, 2009 N2 - This paper presents the design of a low power second-order continuous-time sigma-delta modulator for low power applications. The loop filter of this modulator has been implemented based on the nonlinear transconductance-capacitor (Gm-C) by employing current-mode technique. The nonlinear transconductance uses floating gate MOS (FG-MOS) transistors that operate in weak inversion region. The proposed modulator features low power consumption (<80uW), low supply voltage (1V) and 62dB dynamic range. Simulation results by HSPICE confirm that it is very suitable for low power biomedical instrumentation designs. ER -