View max4069-max4072 datasheet:

19-2423; Rev 0; 4/02 Bidirectional, High-Side, Current-Sense Amplifiers with Reference General Description Features The MAX4069–MAX4072 low-cost, bidirectional, high- Bidirectional, Compact, Current-Sense Solution side, current-sense amplifiers are ideal for monitoring Total Output Error Less than 1.5% battery charge and discharge currents in notebooks, cell phones, and other portable equipment. They fea- Selectable Gain of 50V/V or 100V/V ture up to 24V input common-mode voltage range, low Wide 1.35V to 24V Common-Mode Range 100µA supply current (which drops to only 10µA in Independent of Supply Voltage shutdown), and a total output error of less than 1.5%. 2.7V to 24V Single-Supply Operation The wide 1.35V to 24V input common-mode range is independent of the supply v