The Analog Devices LT1620CMS8#PBF is a current sense amplifier with a rail-to-rail output stage. It operates from a 4.5 V to 5.5 V supply span, draws 2.3 mA supply current, and has 6 mV input offset voltage and 20 nA input bias current.
The LT1620CMS8#PBF comes in an 8-MSOP package (3.00 mm width, 0.118" pitch), surface-mount, shipped in Tube. The 8-MSOP footprint is shared with many current-sense and instrumentation amplifiers, so PCB layout reuse across alternate parts is straightforward. The Tube delivery means the part arrives in a stick — plan for tray or cut-tape handling if your pick-and-place feeder expects tape-and-reel.