MAX4070AUA — Four-pack silicon current-sense amplifier for compact power and sensing designs Why you need it Precise current sensing: provides accurate shunt-based current measurements to tighten feedback loops and improve regulation. Better protection and efficiency: enables reliable over-current detection and safer operation of power and motor systems. Compact and easy to integrate: small 8UMAX package fits dense PCB layouts and multi-board designs. What it does Measures current across a shunt resistor and outputs a sensed voltage suitable for monitoring or control. Interfaces directly with microcontrollers or ADCs for straightforward integration into power-management circuits. Maintains consistent sensing performance across common-mode operating conditions for reliable continuous operation. Key attributes Model: MAX4070AUA (part of the MAX4070 series). Technology: silicon current-sense amplifier optimized for accuracy and stability. Package: compact 8UMAX package for space-constrained boards. Compatibility: designed for shunt-based current sensing and standard ADC/microcontroller inputs. Reliability: engineered for continuous operation with consistent response across expected common-mode ranges. Benefits at a glance Improves control accuracy and reduces design rework by providing dependable current feedback. Enhances safety with precise over-current and fault detection capability. Saves PCB space and supports dense board layouts with the 8UMAX package. Pack of four units lets you prototype, iterate, and deploy across multiple designs. Package contents Four (4) MAX4070AUA current-sense amplifiers in 8UMAX package. Typical use scenarios Power supplies and DC-DC converters: monitor load current to enable tighter regulation and reliable over-current protection. Motor control: measure motor current for torque management, stall detection, and safe drive algorithms. Battery-powered devices: track discharge current for accurate state-of-charge estimation and improved battery protection. Ordering and integration notes Use with an appropriate shunt resistor and ADC or MCU input configured for the expected sensed voltage range. Ideal where board area is limited and consistent, repeatable current sensing is required. Reliable, compact current sensing for power management and motor/battery applications — four MAX4070AUA amplifiers ready for use across multiple boards or designs.