AD8209A

RECOMMENDED FOR NEW DESIGNS

High Voltage, Precision Difference Amplifier

Data Sheet (Rev. A) Product Selection Table

Part Models: 3
1ku List Price: Starting From $2.14

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Overview

±8000 V HBM ESD for shunt-based applications
AEC-Q100 qualified
EMI filters included
High common-mode voltage range
- −2 V to +50 V operating
- −20 V to +70 V survival
Buffered output voltage
Gain = 14 V/V

Low-pass filter (single-pole or two-pole)
Wide operating temperature range: −40°C to +125°C
Excellent ac and dc performance
- ±1 mV voltage offset
- −5 ppm/°C typical gain drift
- 80 dB CMRR minimum dc to 10 kHz
Qualified for automotive applications

The AD8209A is a single-supply difference amplifier ideal for amplifying and low-pass filtering small differential voltages in the presence of a large common-mode voltage. The input common-mode voltage range extends from −2 V to +50 V at a single 5 V supply. The AD8209A is qualified per AEC-Q100 specifications. The amplifier offers enhanced input overvoltage and ESD protection, and includes electromagnetic interference (EMI) filtering.

Automotive applications demand robust, precision components for improved system control. The AD8209A provides excellent ac and dc performance, minimizing errors in the application. Typical offset and gain drift in the MSOP package are less than 5 μV/°C and −5 ppm/°C, respectively. The device also delivers a minimum common-mode rejection ratio (CMRR) of 80 dB from dc to 10 kHz.

The AD8209A features an externally accessible 100 kΩ resistor at the output of the preamplifier (A1) that can be used for low-pass filtering and for establishing gains other than 14 V/V.

Applications

High-side current sensing
- Motor controls
- Solenoid controls
- Power management
Low-side current sensing
Diagnostic protection

Part Models: 3
1ku List Price: Starting From $2.14

Documentation

Data Sheet 1

AD8209A: High Voltage, Precision Difference Amplifier Data Sheet (Rev.A) 08/03/2016

User Guide 1

UG-1024: Evaluation Board User Guide for the AD8209A High Voltage, Precision Difference Amplifier (Rev.0) 08/03/2016

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
AD8209AWBRMZ	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD8209AWBRMZ-R7	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD8209AWBRMZ-RL	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

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

Software Resources

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Tools & Simulations

SPICE Model 1

AD8209A SPICE Macro Model

Evaluation Kits

AD8209A Evaluation Board

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Features and Benefits

Full-featured evaluation board for the AD8209A
Enables quick bread boarding/prototyping
Includes provision for current sense resistor
All analog design, no software needed
Footprints provided for alternate configurations

Product Details

The design of this board emphasizes simplicity and ease of use; the board can be readily mounted with a current sense resistor of a maximum standard size of 2818. The board design also allows flexibility with loads. This board comes with vector pins for the input and output terminals in a predefined configuration.

The AD8209A data sheet covers the details of the device operation and describes the basic connections for operating the device, as well as common circuit configurations and applications. Consult the data sheet in conjunction with this user guide UG-1024 for a better understanding of the device operation, especially when powering up the evaluation board for the first time.

Resources

UG-1024: Evaluation Board User Guide for the AD8209A High Voltage, Precision Difference Amplifier (Rev.0)
8/3/2016

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