A dual single-chip electronic switch is described, specifically designed for audio applications. A "T" switch configuration provides 120dB of "off" isolation, while an actively driven JFET yields 0.002% harmonic distortion, even when driving a 5k ohm load. Internal ramp circuitry provides guaranteed break-before-make action together with negligible charge injection (50pC). Additionally, protection circuitry prevents "breakthrough" when the signal handling capability of the switch is accidentally exceeded.

Author: Bowers, Derek F.
Affiliation: Precision Monolithics Inc., Santa Clara, CA
AES Convention: 87 (October 1989) Paper Number: 2818
Publication Date: October 1, 1989
Subject: Analog/Digital Audio Electronics

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