The MAX9938TEUK+T with Current Sense Amplifiers 1 uA, 4-Bump UCSP/SOT23, Precision Current-Sense Amplifier is a precision current-sense chip manufactured by Analog Devices. The device is packaged in a 4-bump UCSP (Ultra-Compact Surface-Mount Package) or SOT23 (Small Outline Transistor) package. Its primary purpose is to detect small changes in currents in a circuit, with an accuracy of up to 0.25% over the entire range. It can be used for motor control, digital power supplies, overcurrent protection, or any application where current must be accurately measured. The device is designed to provide efficient, low-power operation, and has an on-chip shutdown for fast response time and low quiescent current. The device is available in 1 uA (10 nA) or 5 uA (50 nA) configurations, allowing for precise adjustment of current sensing threshold levels.