A 2.5 V CMOS differential active inductor with tunable L and Q for frequencies up to 5 GHz

A differential active inductor in CMOS-technology with a supply voltage of 2.5 V is presented. A self-resonant frequency of 5.6 GHz is achieved. The value of the inductance L can be controlled in the range from 10 nH up to 100 nH. The quality factor Q can be tuned independently of L to values as lar...

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Bibliographic Details
Published in2001 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium (IEEE Cat. No.01CH37173) pp. 271 - 274
Main Authors Grozing, M., Pascht, A., Berroth, M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2001
Subjects
Active inductors
Circuit optimization
CMOS technology
Equivalent circuits
Gyrators
Inductance
MOSFETs
Q factor
Radio frequency
Transconductance
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Summary:A differential active inductor in CMOS-technology with a supply voltage of 2.5 V is presented. A self-resonant frequency of 5.6 GHz is achieved. The value of the inductance L can be controlled in the range from 10 nH up to 100 nH. The quality factor Q can be tuned independently of L to values as large as 600. The active inductor is realized with a differential gyrator. The gyrator transforms intrinsic capacitances of the MOSFETs to the emulated inductance.
ISBN:9780780366015
0780366018
ISSN:1529-2517
2375-0995
DOI:10.1109/RFIC.2001.935691