The LT1620CMS8#PBF is a precision R-to-R current-sense amplifier manufactured by Analog Devices. It is designed to measure low-level voltage drops developed across the contact points of low-resistance current sensing elements such as Shunt Resistors, Current Transformers, or Rogowski Coils. It provides a low input bias current and a wide input common-mode voltage range of -20V to +20V, allowing the amplifier to operate with low noise at a variety of source voltages. The LT1620CMS8#PBF is available in an SOIC package and features a 1.8 to 5.5V operating supply voltage. It also includes both differential and single-ended output, a high common-mode rejection ratio, a programmable voltage gain, and low-output offset. The LT1620CMS8#PBF is well-suited for use in a variety of current-monitoring applications, including motor control, switched power converters, and battery-management systems.