AD8418A

RECOMMENDED FOR NEW DESIGNS

Bidirectional, Zero-Drift, Current Sense Amplifier

Data Sheet (Rev. E) Product Selection Table

Part Models: 12
1ku List Price: Starting From $1.17

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Part Details

Typical 0.1 μV/°C offset drift
Maximum ±200 μV voltage offset over full temperature range
2.7 V to 5.5 V power supply operating range
Electromagnetic interference (EMI) filters included
High common-mode input voltage range
- −2 V to +70 V, continuous operation
- −3 V to +80 V, continuous survival
Minimum DC common-mode rejection ratio (CMRR): 90 dB

Initial gain = 20 V/V
Wide operating temperature range
- AD8418AWB and AD8418AB: −40°C to +125°C
- AD8418AWH: −40°C to +150°C
Bidirectional operation
Available in 8-lead SOIC_N, 8-lead MSOP, and FMEA tolerant
- 10-lead MSOP pinout
AEC-Q100 qualified for automotive applications

Part Models: 12
1ku List Price: Starting From $1.17

Documentation

Data Sheet 1

AD8418A: Bidirectional, Zero Drift, Current Sense Amplifier Data Sheet (Rev.E) 12/03/2013

Application Note 2

AN-1308: Common-Mode Step Response of Current Sense Amplifiers (Rev.A) 06/25/2014

AN-1308: Common-Mode Step Response of Current Sense Amplifiers 03/31/2025

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
AD8418ABRMZ	8-Lead MSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
AD8418ABRMZ-RL	8-Lead MSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
AD8418AWBRMZ	8-Lead MSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
AD8418AWBRMZ-10	10-Lead MSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
AD8418AWBRMZ-10RL	10-Lead MSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
AD8418AWBRMZ-RL	8-Lead MSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
AD8418AWBRZ	8-Lead SOIC	Material Declaration Reliablity Data	Ultra Librarian SamacSys
AD8418AWBRZ-RL	8-Lead SOIC	Material Declaration Reliablity Data	Ultra Librarian SamacSys
AD8418AWHRMZ	8-Lead MSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
AD8418AWHRMZ-RL	8-Lead MSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
AD8418AWHRZ	8-Lead SOIC	Material Declaration Reliablity Data	Ultra Librarian SamacSys
AD8418AWHRZ-RL	8-Lead SOIC	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Oct 12, 2018 - 18_0156 Revision to AD8418A Data Sheet Absolute Maximum Ratings Table
		PCN18_0156_Form Material_Report Delta Qualification Matrix Qualification Results Summary Datasheet Specification Comparison
AD8418ABRMZ	PRODUCTION
AD8418ABRMZ-RL	PRODUCTION
AD8418AWBRMZ	PRODUCTION
AD8418AWBRMZ-RL	PRODUCTION
AD8418AWBRZ	PRODUCTION
AD8418AWBRZ-RL	PRODUCTION
AD8418AWHRMZ	PRODUCTION
AD8418AWHRMZ-RL	PRODUCTION
AD8418AWHRZ	PRODUCTION
AD8418AWHRZ-RL	PRODUCTION
Mar 8, 2016 - 15_0176 Assembly Transfer of Select 8/10L MSOP Products to Amkor Philippines
		PCN15_0176_Form Material_Report Detailed Change Description Qualification Results Summary Qualification Results Summary
AD8418ABRMZ	PRODUCTION
AD8418ABRMZ-RL	PRODUCTION
AD8418AWBRMZ	PRODUCTION
AD8418AWBRMZ-RL	PRODUCTION
AD8418AWHRMZ	PRODUCTION
AD8418AWHRMZ-RL	PRODUCTION
Aug 31, 2015 - 14_0246 Qualification of ASE Chungli, as an Alternate Assembly Site for Select MSOP Devices
		PCN14_0246_Form Material_Report Detailed Change Description Qualification Results Summary
AD8418ABRMZ	PRODUCTION
AD8418ABRMZ-RL	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
AD8410A	RECOMMENDED FOR NEW DESIGNS	−2 V to 70 V Wide Input Voltage Range, 2.2 MHz High Bandwidth, Current-Sense Amplifier with PWM Rejection and Gain 20 V/V

Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

AD8418A

SPICE Model 1

AD8418A SPICE Macro Model

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

schematic 1

AD8418A Evaluation Board for Bidirectional, Zero-Drift, Current Sense Amplifier

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Product Details

The AD8418ARM-EVALZ accommodates the AD8418A in the MSOP package, while the AD8418AR-EVALZ accommodates the AD8418A in an SOIC package.

The AD8418A data sheet for this device should be consulted in conjunction with this evaluation board user guide documentation.

Reference Designs

Figure 1. CN0548 Block Diagram

Isolated High Voltage, High Current, Measurement Module

View Detailed Reference Design

Features and Benefits

Wide Current (+/-10 A) and Voltage (80 V) Input Range
Configurable gain/attenuation settings
Galvanically Isolated
Arduino form factor compatible

Part Used

Design & Integration Tools

CN0548 Design Files
4.98 M

Videos

VIDEO Â· 2022-05-13 01:02

CN0548: Isolated High Voltage, High Current, Measurement Module

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