A source follower lowpass filter which has a capability of bulk-attenuation cancellation in higher order is presented. Under strong inversion bias arrangement for high frequency application, this fourth-order-filter is simulated in a 0.18 µm standard CMOS process and exhibits a 20 MHz bandwidth with total power consumption of 0.323 mW from 1.8 V supply. Third order intermodulation distortion verification with 1.9 and 2.1 MHz signal archives 23.9 dBm IIP3 with 75.5 dB dynamic range. By using figure-of-merit as a benchmark indicator, the proposed filter is one of the top in its class with the lowest power consumption.
Thanapitak, SurachokeChulajata, TatchaSedtheetorn, PongsatornHayatleh, KhaledSurakampontorn, Wanlop
School of Engineering, Computing and Mathematics
Year of publication: 2021Date of RADAR deposit: 2021-04-07
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