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Grounded-capacitor SRCOs using a single differential difference complementary current feedback amplifier

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2 Author(s)
Gupta, S.S. ; Div. of Electron. & Commun. Eng., Netaji Subhas Inst. of Technol., New Delhi, India ; Senani, R.

The usefulness of a new active building block, the 'differential difference complementary current feedback amplifier' (DDCCFA) in realising single resistance controlled oscillators (SRCO) employing grounded capacitors has been demonstrated and using a state-variable methodology, a number of new single DDCCFA-based SRCOs have been derived. It is shown that the new SRCOs possess features, all of which are not available simultaneously in any single active building block-based SRCOs known earlier. The workability of the proposed circuits has been verified by SPICE simulations using a DDCCFA implementable in 0.35 micron CMOS technology.

Published in:

Circuits, Devices and Systems, IEE Proceedings -  (Volume:152 ,  Issue: 1 )