A 60nm CMOS, 3rd and 5th Order Low Pass Filter with Higher Cut-off Frequency

Suman Nehra, P.K. Ghosh


The design of CMOS based low pass filter for analog-to-digital, digital-to-analog and audio applications is described in this paper. Active load resistor and floating inductor is used for the implementation of low pass filter. CMOS technology has become dominant over bipolar technology for analog circuits design in mixed signal system. The differential floating active inductor is designed with CMOS and current sources. The floating inductor may be electronically tuned by varying external bias voltage as well as current. The simulations are obtained by using 65nm CMOS technology on Tanner EDA tool 13.0. The filters are synthesized from 3rd and 5th order low-pass LC prototype and designed using ladder structure.

Keywords: Complementary Metal Oxide Semiconductor (CMOS), low pass filter (LPF), active resistor, Power delay product (PDP).

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ISSN (Paper)2224-5782 ISSN (Online)2225-0506
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