A High Voltage Line Driver for Subscriber Loop Interfaces in a Low Voltage Submicron BiCMOS Technology
Authors: Aliahmad M.1; Salama C.A.T.1
Source: Analog Integrated Circuits and Signal Processing, Volume 17, Number 3, November 1998 , pp. 261-274(14)
Publisher: Springer
Abstract:
This paper presents a 30 V line driver for short loop subscriber line interface circuit applications. The high voltage line drivers was implemented in a low-voltage 0.8
m BiCMOS process using 30 V extended-drain MOS transistors, fully compatible with the low voltage technology. Using a Quasi-Current Mirror architecture for the output stage, the line driver is capable of delivering more than 30 mA current into the lines with an idle current as low as 1 mA, satisfying the short loop requirements. With less than 0.24 mm^2 area, the circuit can be easily integrated with low-voltage circuitry on a single chip.
Keywords: line driver; SLIC; high voltage IC
Language: English
Document Type: Regular paper
Affiliations: 1: Department of Electrical and Computer Engineering, University of Toronto, 10 Kings College Road, Toronto, Ontario, Canada, M5S 3G4

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