A 3.3-V, low-distortion ISDN line driver with a novel quiescent current control circuit

A U-interface line driver for a single-chip ISDN (integrated services digital network) NT (network termination) in an advanced 3.3-V, 0.5-/spl mu/m CMOS technology is presented. It features a THD (total harmonic distortion) better than -68 dB for an output swing of 5 V/sub pp/ on a 67-/spl Omega/ lo...

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Bibliographic Details
Published in:IEEE journal of solid-state circuits 1998-07, Vol.33 (7), p.1130-1133
Main Authors: Casier, H., Wouters, P., Graindourze, B., Sallaerts, D.
Format: Article
Language:English
Subjects:
Bandwidth
Circuit simulation
CMOS digital integrated circuits
CMOS technology
Current control
Driver circuits
Integrated circuit technology
ISDN
MOS devices
Phase distortion
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Summary:A U-interface line driver for a single-chip ISDN (integrated services digital network) NT (network termination) in an advanced 3.3-V, 0.5-/spl mu/m CMOS technology is presented. It features a THD (total harmonic distortion) better than -68 dB for an output swing of 5 V/sub pp/ on a 67-/spl Omega/ load in a band up to 60 kHz. A novel quiescent current control circuit is implemented. The advantages of this new approach lie in the reduction of the variation of the quiescent current and the facilitation of the driver's circuits and compensation scheme.
ISSN:0018-9200
1558-173X
DOI:10.1109/4.701280