AD8214ARMZ

Overview

The AD8214ARMZ is a single-channel current shunt threshold detector manufactured by Analog Devices Inc. It operates within a supply voltage range of 5 V to 65 V and supports common-mode voltages from 5 V to 65 V. Key electrical parameters include an input bias current of 12 nA, an input offset voltage of 3 mV, and a common-mode rejection ratio of 80 dB. The device draws 1.2 mA of operating power and features a maximum output current of 1 mA per channel. It is housed in an MSOP-8 surface-mount package and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Integrated high-side current sensing with built-in threshold detection logic for direct microcontroller interfacing
• High common-mode voltage tolerance up to 65 V enabling use in high-voltage bus monitoring applications
• Low input bias current and low offset voltage ensuring accurate measurement across the full dynamic range

Applications

• High-side current monitoring in industrial motor drives
• Overcurrent protection circuits in power distribution systems
• Battery management system fault detection
• Automotive electronic control unit (ECU) current sensing

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels due to limited availability status. Confirm RoHS compliance documentation matches specific manufacturing lot requirements. Ensure storage conditions adhere to moisture sensitivity level specifications prior to soldering. Validate that the MSOP-8 footprint aligns with design guidelines to prevent assembly defects during placement.

Selection Notes

Select this component when high-side sensing with integrated threshold comparison is required without external comparators. Consider the 65 V common-mode limit for suitability in automotive or industrial bus architectures. Evaluate the 1.2 mA supply current against total system power budgets. Ensure the MSOP-8 package size fits within the available PCB real estate constraints compared to larger packages.

Part Context

Part of the AD8214 series of current sense amplifiers designed for robust performance in noisy environments. The ARMZ suffix indicates a lead-free, halogen-free variant compliant with modern environmental standards. This specific model integrates threshold detection capabilities, distinguishing it from standard gain-only current sense amplifiers in the broader product line.

Replacement Considerations

Check AD8214ARMZ-R7 for reel packaging alternatives. Verify pin compatibility with other Analog Devices current sense amplifiers if redesigning for different voltage ranges.