Design of Telescopic OTA based 6th order Butter-worth Low Pass Filter using 0.18μm CMOS Technology

This paper introduces the idea of the OTA(Operational Trans-conductance Amplifier) based 6th order Butter-worth low-pass filter(BLPF). Using the Cadence Spectre tool with 0.18 μm technology, the design and simulation of this OTA based 6th order BLPF are completed. The simulated results of OTA show the gain of around 81.70 dB and UGB of 27.107 MHz. The simulation of the proposed filter represent the magnitude of the frequency response of -148.6 mdB, 8.95MHz pass-band frequency, 69.97 dB PSRR, 135.98 dB NF, 203μW average power dissipation, and 2.2 GHz bandwidth.

[1]  M. Loulou,et al.  Design of sixth order butterworth Gm-C filter using Particle Swarm Optimization program for biomedical application , 2017, 2017 29th International Conference on Microelectronics (ICM).

[2]  Marvin Onabajo,et al.  Linear input range extension for low-voltage operational transconductance amplifiers in Gm-C filters , 2017, 2017 IEEE International Symposium on Circuits and Systems (ISCAS).

[3]  Rajeshwari S. Mathad.  Low Frequency Filter Design using Operational Transconductance Amplifier , 2014 .

[4]  H. Hida,et al.  Low-power widely tunable Gm-C filter with an adaptive DC-blocking, triode-biased MOSFET transconductor , 2004, Proceedings of the 30th European Solid-State Circuits Conference.

[5]  Nasser Masoumi,et al.  A 4.35-mW +22-dBm IIP3 continuously tunable channel select filter for WLAN/WiMax receivers in 90-nm CMOS , 2010, 2010 IEEE Radio Frequency Integrated Circuits Symposium.

[6]  Alessandro Girardi,et al.  A digitally tunable 4th-order Gm-C low-pass filter for multi-standards receivers , 2016, 2016 29th Symposium on Integrated Circuits and Systems Design (SBCCI).

[7]  Yuan-Sun Chu,et al.  Low-Voltage OTA–C Filter With an Area- and Power-Efficient OTA for Biosignal Sensor Applications , 2019, IEEE Transactions on Biomedical Circuits and Systems.

[8]  Denis Flandre,et al.  A gm/ID based methodology for the design of CMOS analog circuits and its application to the synthesis of a silicon-on-insulator micropower OTA , 1996, IEEE J. Solid State Circuits.

[9]  Shuenn-Yuh Lee,et al.  A Fifth-Order Butterworth OTA-C LPF With Multiple-Output Differential-Input OTA for ECG Applications , 2018, IEEE Transactions on Circuits and Systems II: Express Briefs.

[10]  Cyril Botteron,et al.  A wide tuning range 4 th-order Gm-C elliptic filter for wideband multi-standards GNSS receivers , 2015, ESSCIRC Conference 2015 - 41st European Solid-State Circuits Conference (ESSCIRC).

[11]  Christopher T. Rodenbeck,et al.  Low-Power ${G}_{{m}}{-}C$ Filter Employing Current-Reuse Differential Difference Amplifiers , 2017, IEEE Transactions on Circuits and Systems II: Express Briefs.