The MAX4081TASA+ is a precision current sense amplifier integrated circuit manufactured by Analog Devices/Maxim Integrated, designed specifically for accurate current monitoring applications in electronic systems. This single-circuit current sensing IC belongs to the linear amplifiers category, specifically within the instrumentation, operational, and buffer amplifiers classification, addressing the critical design challenge of precise current measurement while maintaining system efficiency and safety.
The device operates across an exceptionally wide supply voltage range from 4.5V to 76V, making it highly versatile for various power management applications from low-voltage consumer electronics to high-voltage industrial systems. Its robust operating temperature range of -40°C to 125°C ensures reliable performance in harsh environmental conditions, while the surface-mount 8-SOIC package (0.154" width) provides a compact footprint suitable for space-constrained designs. The amplifier features a 150 kHz bandwidth with minimal input bias current of 5µA and input offset voltage of 100µV, delivering high precision measurements essential for battery management, motor control, and power supply monitoring applications.
Key advantages include the device's ability to handle high supply voltages up to 76V while maintaining low power consumption with a supply current of 103µA, making it ideal for battery-powered applications where efficiency is paramount. The current sense amplifier type specifically addresses the challenge of measuring current flow without significantly impacting circuit performance, providing accurate feedback for overcurrent protection, battery charging control, and power management systems. The RoHS3 compliant design ensures environmental compliance for commercial applications.
Primary application areas encompass automotive electronics, industrial automation, battery management systems, power supplies, motor drives, and portable electronic devices where precise current monitoring is essential for safety and performance optimization. The device's wide voltage range makes it particularly suitable for automotive applications operating on 12V, 24V, or 48V systems, as well as industrial equipment requiring robust current sensing capabilities.
Equivalent and alternative models include the MAX4080 series (MAX4080SASA+, MAX4080TASA+) offering similar functionality with slight variations in specifications, the INA series from Texas Instruments such as INA180, INA181, and INA282 providing comparable current sensing capabilities, Allegro's ACS series including ACS712 and ACS758 for integrated current sensor solutions, and Linear Technology's LTC6101 and LTC6102 precision current sense amplifiers. Additional alternatives include the AD8210 and AD8211 from Analog Devices, offering different gain configurations and voltage ranges, and the TSC101 and TSC102 from STMicroelectronics providing similar high-side current sensing functionality. These alternatives may offer different package options, voltage ranges, or specialized features depending on specific application requirements, allowing designers flexibility in selecting the optimal current sensing solution for their particular design constraints and performance objectives.
MAX4081TASA+ Key Technical Attributes
Current Sense Amplifier
8-SOIC Package
1 Circuit per Device
MAX4081TASA+ Packing Size
The MAX4081TASA+ is provided in an industry-standard 8-pin SOIC package, measuring approximately 0.154 inches (3.90mm) in width. It is delivered in tube packing, ensuring safe handling and efficient storage. This surface-mount package supports streamlined PCB assembly and is widely compatible with automatic pick-and-place equipment. The 8-SOIC configuration features straightforward pin assignments for ease of design integration and reliable thermal characteristics, facilitating consistent operation within its full temperature range.
MAX4081TASA+ Application
This current sense amplifier excels in applications requiring high-side current monitoring, such as battery management, motor control, power management systems, and industrial automation. Its wide operating voltage range and robust performance make it ideal for monitoring and controlling currents in automotive systems, telecom infrastructure, and precision instrumentation.
MAX4081TASA+ Features
The MAX4081TASA+ boasts a comprehensive set of features tailored for precision and dependability. It operates across an extended voltage supply span from 4.5V to 76V, allowing versatility in a wide array of systems. The device supports a -40°C to +125°C operating temperature range, enabling use in demanding industrial and automotive environments. With a current supply capability of 103A and a -3dB bandwidth of 150 kHz, it provides fast and accurate amplification for dynamic current measurement. The amplifier type is specified as current sense, optimized for high-side current measurement with excellent common-mode rejection. Input bias current is minimized at 5μA, coupled with a tight input offset voltage of 100μV, supporting high accuracy. RoHS3 compliance attests to environmentally friendly manufacturing. Additionally, the tube packaging preserves product integrity and simplifies integration into assembly lines.
MAX4081TASA+ Quality and Safety Features
This product is fully RoHS3 compliant, ensuring adherence to the latest environmental and safety standards for hazardous substances. Its extensive tested operating temperature range underpins reliability in harsh environments. As a product of Analog Devices / Maxim Integrated, it carries the assurance of rigorous quality control and a proven track record in circuit protection and longevity.
MAX4081TASA+ Compatibility
The MAX4081TASA+ aligns with standard electronic manufacturing processes, compatible with other ICs in the MAX4081 series and standard 8-SOIC sockets. It is suitable for mixed-voltage systems and can be integrated easily with a broad range of analog and digital platforms through its surface-mount design.
MAX4081TASA+ Datasheet PDF
For the most comprehensive and up-to-date technical details, performance graphs, and application notes, please download the authoritative datasheet PDF directly from our website. Access the current product-specific datasheet on this page to ensure the latest information and facilitate your design process.
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