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IEICE TRANSACTIONS on Electronics

A CMOS Line Driver with 80-dB Linearity for ISDN Applications

Haideh KHORRAMABADI

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Summary :

A high-performance CMOS line driver for ISDN U-interface transceiver applications has been designed and fabricated. Careful study of requirements and trade-offs affecting linearity, power efficiency, and quiescent current presented in this paper has resulted in a circuit structure featuring a highly linear input/output characteristic and well-controlled quiescent current. The prototype line driver is capable of delivering a 5Vpp signal of up to 80 kHz to a 60-Ω load while exhibiting linearity in the order of 77 5 dB and operating from a single 5-V power supply. Linearity better than 70 dB is maintained for load resistances as low as 20 Ω.

Publication
IEICE TRANSACTIONS on Electronics Vol.E75-C No.4 pp.437-442
Publication Date
1992/04/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Joint Special Issue on the 1991 VLSI Circuits Symposium)
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