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Compact, High- Q , and Low-Current Dissipation CMOS Differential Active Inductor

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3 Author(s)
Chun-Lee Ler ; Fac. of Electr. Eng., Univ. of Technol. Malaysia, Skudai ; bin A'ain, A.K. ; Kordesch, A.V.

This letter presents an improved, compact, and tunable high-Q differential active inductor implemented in Silterra's industry standard 0.18 mum CMOS process. The improved differential active inductor demonstrates a Q ap 1000 at high frequency region. Low-current dissipation is achieved by reusing the current from the differential gyrator for stabilizer and negative impedance circuit. A replica bias circuit has been introduced to allow current-controlled inductance of the improved differential active inductor. Sensitivity of the improved differential active inductor to process variation is also included in this letter.

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:18 ,  Issue: 10 )