AD8279

PRODUCTION

AD8279

Low Power, Wide Supply Range, Low Cost Difference Amplifiers, G = ½, 2

PRODUCTION

Not the part you were looking for?

Go to Product Selection Table

View All Documentation

Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

Other places you can find help

Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 6

1ku List Price Starting From $1.88

Features

Wide input range beyond supplies
Rugged input overvoltage protection
Low supply current: 200 μA maximum (per amplifier)
Low power dissipation:
0.5 mW at VS = 2.5 V
Bandwidth: 1 MHz (G = ½)
CMRR: 80 dB minimum,
dc to 20 kHz (G = ½, B Grade)
Low offset voltage drift: ±1 μV/°C maximum (B Grade)
Low gain drift: 1 ppm/°C maximum (B Grade)
Enhanced slew rate: 1.4 V/μs
Wide power supply range
Single supply: 2 V to 36 V
Dual supplies: ±2 V to ±18 V
8-lead SOIC, 14-lead SOIC, and MSOP packages

Additional Details

The AD8278 and AD8279 are general-purpose difference amplifiers intended for precision signal conditioning in power critical applications that require both high performance and low power. The AD8278 and AD8279 provide exceptional common-mode rejection ratio (80 dB) and high bandwidth while amplifying input signals that are well beyond the supply rails. The on-chip resistors are laser trimmed for excellent gain accuracy and high CMRR. They also have extremely low gain drift vs. temperature.

The common-mode range of the amplifier extends to almost triple the supply voltage (for G = ½), making the amplifer ideal for single-supply applications that require a high common-mode voltage range. The internal resistors and ESD circuitry at the inputs also provide overvoltage protection to the op amp.

The AD8278 and AD8279 can be used as difference amplifiers with G = ½ or G = 2. They can also be connected in a high precision, single-ended configuration for non inverting and inverting gains of −½, −2, +3, +2, +1½, +1, or +½. The AD8278 and AD8279 provide an integrated precision solution that has a smaller size, lower cost, and better performance than a discrete alternative.

The AD8278 and AD8279 operate on single supplies (2.0 V to 36 V) or dual supplies (±2 V to ±18 V). The maximum quiescent supply current is 200 μA, which is ideal for battery-operated and portable systems. For unity-gain difference amplifiers with similar performance, refer to the AD8276 and AD8277 data sheets.

The AD8278 is available in the space-saving 8-lead MSOP and SOIC packages, and the AD8279 is offered in a 14-lead SOIC package. Both are specified for performance over the industrial temperature range of −40°C to +85°C and are fully RoHS compliant.

Applications

Voltage measurement and monitoring

Current measurement and monitoring

Instrumentation amplifier building block

Portable, battery-powered equipment

Test and measurement

View All Documentation

Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

Other places you can find help

Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 6

1ku List Price Starting From $1.88

Technical Documents 2

AD8278/AD8279: Low Power, Wide Supply Range, Low Cost Difference Amplifiers, G = ½, 2 Data Sheet (Rev.C) 01/25/2011

UG-744: Evaluating the AD8273/AD8277/AD8279 08/12/2015

Reference Materials 1

Differential-Output Difference Amplifier System with G = 1/2 06/01/2010

Design Resources 6

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
AD8279ARZ	14-Lead SOIC	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
AD8279ARZ-R7	14-Lead SOIC	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
AD8279ARZ-RL	14-Lead SOIC	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
AD8279BRZ	14-Lead SOIC	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
AD8279BRZ-R7	14-Lead SOIC	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
AD8279BRZ-RL	14-Lead SOIC	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

AD8279ARZ
Pin/Package Drawing
14-Lead SOIC
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

AD8279ARZ-R7
Pin/Package Drawing
14-Lead SOIC
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

AD8279ARZ-RL
Pin/Package Drawing
14-Lead SOIC
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

AD8279BRZ
Pin/Package Drawing
14-Lead SOIC
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

AD8279BRZ-R7
Pin/Package Drawing
14-Lead SOIC
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

AD8279BRZ-RL
Pin/Package Drawing
14-Lead SOIC
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

PCN/PDN Information

Filter by Model

Part Models

Product Lifecycle

PCN

Mar 25, 2021

- 21_0080

Amkor Philippines as an Alternate Site for SOICN

AD8279ARZ

PRODUCTION

AD8279ARZ-R7

PRODUCTION

AD8279ARZ-RL

PRODUCTION

AD8279BRZ

PRODUCTION

AD8279BRZ-R7

PRODUCTION

AD8279BRZ-RL

PRODUCTION

pdf

PCN21_0080_Form

xls

Material_Report

pdf

Qualification Results Summary

pdf

Other

Oct 5, 2010

- 10_0146

Halogen Free Material Change for 14/16L SOIC_N Products

AD8279ARZ

PRODUCTION

AD8279ARZ-R7

PRODUCTION

AD8279ARZ-RL

PRODUCTION

AD8279BRZ

PRODUCTION

AD8279BRZ-R7

PRODUCTION

AD8279BRZ-RL

PRODUCTION

pdf

PCN10_0146_Form

xls

Material_Report

AEC-Q100 Reliability Report

ADI0012 Reliability Report

Filter by Model

Part Models

Product Lifecycle

PCN

Mar 25, 2021

- 21_0080

Amkor Philippines as an Alternate Site for SOICN

AD8279ARZ

PRODUCTION

AD8279ARZ-R7

PRODUCTION

AD8279ARZ-RL

PRODUCTION

AD8279BRZ

PRODUCTION

AD8279BRZ-R7

PRODUCTION

AD8279BRZ-RL

PRODUCTION

pdf

PCN21_0080_Form

xls

Material_Report

pdf

Qualification Results Summary

pdf

Other

Oct 5, 2010

- 10_0146

Halogen Free Material Change for 14/16L SOIC_N Products

AD8279ARZ

PRODUCTION

AD8279ARZ-R7

PRODUCTION

AD8279ARZ-RL

PRODUCTION

AD8279BRZ

PRODUCTION

AD8279BRZ-R7

PRODUCTION

AD8279BRZ-RL

PRODUCTION

pdf

PCN10_0146_Form

xls

Material_Report

AEC-Q100 Reliability Report

ADI0012 Reliability Report

EVAL-AD827X

AD8273/AD8277/AD8279 Evaluation Board

EVAL-AD827X

AD8273/AD8277/AD8279 Evaluation Board

Features and Benefits

Full-featured evaluation board for the AD8273/AD8277/AD8279
On-board voltage regulator
Low cost and easy-to use-header for control signals
All analog design, no software needed
Footprints provided for alternate configurations

Buy Now View Details

Product Detail

The design of this board emphasizes simplicity and ease of use. This board comes with a ready assortment of connection options (BNC and RCA connectors), and many configurations are set by jumpers.

The AD8273, AD8277, AD8279 data sheets, available at www.analog.com, cover the details of the device’s operation. Using these data sheets for reference will help designers in their end application. The data sheets are helpful for understanding the operation of the AD8273/AD8277/AD8279 evaluation board, especially during the initial configuration and when powering up for the first time.

Resources

PDF

UG-744: Evaluating the AD8273/AD8277/AD8279