Nordic Semiconductor ASA
VOLTAGE DIVIDERS

Abstract:

A voltage divider circuit comprises: a resistive divider circuit portion comprising at least first and second resistors (R.sub.1, R.sub.2), wherein said first and second resistors are connected in series and are arranged to provide a refresh voltage (V.sub.refresh) at a refresh node therebetween; a capacitive divider circuit portion comprising at least first and second capacitors (C.sub.1, C.sub.2), wherein said first and second capacitors are connected in series and are arranged to provide an output voltage (V.sub.out) at an output node therebetween; and a switching circuit portion arranged intermittently to switch the voltage divider circuit arrangement between a first mode wherein the resistive divider circuit portion is enabled and the output node is connected to the refresh node, and a second mode wherein the resistive divider circuit portion is disabled and the output node is not connected to the refresh node.