Abstract: The MAX4374 high-side current sense amplifier with two internal comparators is used to produce a pulse-width output signal proportional to the current being sensed. This simple circuit eliminates the need for a discrete A/D converter. Maxim > App Notes > AMPLIFIER AND COMPARATOR CIRCUITS Keywords: current sense IC, high side current sense, current sense amplifier, pulse width signal output, May 31, 2002 current sense resistor APPLICATION NOTE 1084 High-Side Current Sensor Has Period Output Abstract: The MAX4374 high-side current sense amplifier with two internal comparators is used to produce a pulse-width output signal proportional to the current being sensed. This simple circuit eliminates the need for a discrete A/D converter. High-side current monitoring is found in many battery-powered products that require accurate monitoring of load current, charger current, or both. In non-portable applications high-side current monitoring serves as a power- supply watchdog that can flag a failure in downstream devices. It……