Preventing Excess Power Consumption on Analog Switches

Texas Instruments

Published Date: 07/03/2008

Description

Analog switches are extensively used for switching audio signals in battery-powered applications such as mobile phones. In any cases the switch is powered directly from the battery but it receives control signals from a lower voltage processor GPIO. For most analog switches this application condition leads to an excess supply current draw that catches system designers by surprise. This applica

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