BUY MAX4172ESA https://www.utsource.net/itm/p/408485.html
Low-Cost, Precision, High-Side Current-Sense Amplifier
The MAX4172ESA is a single-supply, low-power, rail-to-rail, CMOS operational amplifier from Maxim Integrated. It is designed to operate from a single 2.7V to 5.5V supply and is capable of delivering up to ±2.5V output swing. The device features a low quiescent current of only 1.2mA and a low input bias current of only 1pA. Features: * Rail-to-rail input and output * Low quiescent current: 1.2mA * Low input bias current: 1pA * Low offset voltage: 0.5mV * Low noise: 0.9μV/√Hz * High gain bandwidth: 1.2MHz Applications: * Battery-powered systems * Portable instrumentation * Data acquisition systems * Medical instrumentation * Industrial process control (For reference only)