General Description

The MAX4376/MAX4377/MAX4378 single, dual, and quad precision high-side current-sense amplifiers are available in space-saving packages. They feature buffered voltage outputs that eliminate the need for gain-setting resistors and are ideal for today’s notebook computers, cell phones, and other systems where current monitoring is critical.

Features

♦Low-Cost, Single/Dual/Quad, High-Side Current Sense Amplifiers

♦±0.5% Typical Full-Scale Accuracy

♦+3V to +28V Supply Operation

♦Adjustable Current-Sense Capability with External Sense Resistor

♦Buffered Output Voltage with 2mA Drive

♦1mA (typ) Supply Current

♦2.0MHz Bandwidth (Gain = +20V/V)

♦Automotive Temperature Range (-40°C to +125°C)

♦Full 0 to 28V Common-Mode Range, Independent of Supply Voltage

♦Three Gain Versions Available

+20V/V (MAX437_T)

+50V/V (MAX437_F)

+100V/V (MAX437_H)

♦Available in Space-Saving 5-Pin SOT23 (Single), 8-Pin µMAX (Dual), and 14-Pin TSSOP (Quad)