The WS74199Q-10/TR is an integrated circuit (IC) containing four current-sensing amplifiers in a 10-pin, quad no-lead (QFN) package manufactured by Will Semiconductor. This IC is designed for load current measurement in the range of 300mA to 20A. It incorporates a chopper-stabilized architecture, low noise voltage-to-current conversion circuit, and a high linearity, low-co-channel crosstalk, differential or unbalanced input circuit. It is also RoHS compliant and suitable for a variety of applications, from automotive to consumer electronics. This IC is an ideal choice for DC-DC converters, power bias circuits, hot-swap power controllers, and motor current control.