In the domain of industrial and automotive electronics, precise current measurement is crucial for the reliable operation of systems. Analog Devices steps up to meet this demand with their high-performance current-sense amplifier, the AD8410A, designed to provide accurate current measurements in tough environments. >> Learn more about AD8410A.
High Precision and Broad Temperature Performance
The AD8410A boasts an impressive initial gain of 20 V/V and features a broad bandwidth of 2.2 MHz. This allows for rapid response to current changes, essential for applications requiring quick feedback loops. Gain accuracy is critical in current-sensing applications, and the AD8410A ensures a maximum ±0.13% gain error across a wide temperature range, providing reliable performance from −40°C to +125°C.
Engineered for Stability
One of the standout characteristics of the AD8410A is its in-package trim core, which substantially minimizes offset drift to ±0.21 μV/°C. This precision is maintained over the full operating temperature and common-mode voltage range without resorting to complex techniques like chopping and autozero clocks, which could introduce unwanted noise into the system.
Versatility in Measurement
The AD8410A shines with a high DC common-mode rejection ratio (CMRR) of 123 dB from −2 V to +70 V. It excels at bidirectional current measurements across a shunt resistor, ensuring versatility in various applications. Its buffered output directly interfaces with typical converters, making it an ideal choice for a range of industrial and automotive uses.
Applications That Benefit
With its robust design, the AD8410A is well-suited for in-phase or high-side current sensing in motor control applications, including BLDC and low-inductance motors. It’s also effective in managing bidirectional 48 V to 12 V DC-DC converters, controlling solenoids, monitoring power rails, and low-side current sensing tasks. Its ability to accurately measure current in these applications ensures efficient operation and protection of critical components.
Packaging Options for Design Flexibility
Available in an 8-lead SOIC_N package and an 8-lead MSOP package, the AD8410A provides flexibility for various design needs. This, coupled with its ability to handle pulse-width modulation (PWM) type input common-mode voltages, makes the AD8410A a versatile solution that can be integrated into a plethora of electrical systems.
Conclusion
The AD8410A from Analog Devices represents a significant leap forward in current-sense amplifier technology, offering unparalleled precision and stability for a range of demanding applications. Its integration into automotive and industrial systems can contribute to greater efficiency, safety, and reliability. For a closer look at the AD8410A in action, be sure to check out the product video that highlights its features and showcases its potential in real-world applications.
