AD8218BCPZ-RL

Overview

The AD8218BCPZ-RL is a high-voltage, zero-drift bidirectional current shunt monitor manufactured by Analog Devices. It features a fixed gain of 20 V/V and operates with common-mode voltages ranging from 4 V to 80 V. The device offers excellent DC accuracy with a typical input offset voltage of 50 µV and drift of ±100 nV/°C. It provides a buffered output compatible with standard analog-to-digital converters. Operating within a temperature range of -40°C to +125°C, it supports high-side current sensing in industrial and telecom environments.

Feature Summary

• Zero-drift architecture ensures minimal offset voltage drift over temperature variations
• Supports bidirectional current measurement across a shunt resistor
• High common-mode voltage operation up to 80 V
• Buffered output directly interfaces with typical data converters

Applications

• High-side current sensing
• 48 V telecom power systems
• Bidirectional motor control
• Base station power amplifier bias control

Procurement Notes

Verify the specific suffix BCPZ-RL against official Analog Devices documentation to confirm package type and reel quantity. Ensure compatibility with system voltage requirements and thermal management needs. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Confirm RoHS compliance status for your region's regulatory requirements before finalizing procurement.

Selection Notes

Select this component when high-side current sensing requires precision in high common-mode voltage environments. The fixed 20 V/V gain simplifies design by eliminating external resistor networks. Consider the LFCSP package for space-constrained PCB layouts. Evaluate the operating temperature range against your application's environmental conditions to ensure reliable performance under extreme thermal stress.

Part Context

This part belongs to the AD8218 family of zero-drift current shunt monitors. It shares functional similarities with other members like the AD8218BRMZ but differs in packaging and tape-and-reel configuration. The series is designed for applications demanding high accuracy and stability in industrial and telecommunications power management systems.

Replacement Considerations

Direct substitutes include AD8218BCPZ-WP and AD8218BRMZ-RL. Verify pinout compatibility and electrical specifications before substitution. Ensure the replacement part meets the same common-mode voltage and gain requirements.