-
AD8479: Very High Common-Mode Voltage Precision Difference Amplifier Data Sheet (Rev. C)1/29/2021PDF387 K
-
AD8479-DSCC: Military Data Sheet10/7/2019
-
AD8479-EP: Very High Common-Mode Voltage Precision Difference Amplifier (Rev. 0)6/18/2019PDF213 K
Overview
Features and Benefits
- ±600 V common-mode voltage range
- Rail-to-rail output
- Fixed gain of 1
- Wide power supply range of ±2.5 V to ±18 V
- 550 μA typical power supply current
- Excellent ac specifications
- 90 dB minimum CMRR
- 310 kHz bandwidth
- High accuracy dc performance
- ±5 ppm maximum gain nonlinearity
- ±10 µV/°C maximum offset voltage drift
- ±5 ppm/°C maximum gain drift
- Download AD8479-EP data sheet (pdf)
- Military temperature range (−55°C to +125°C)
- Controlled manufacturing baseline
- One assembly/test site
- One fabrication site
- Product change notification
- Qualification data available on request
- A62/19619 VID DSCC Drawing Number
Product Details
The AD8479 is a difference amplifier with a very high input common-mode voltage range. The AD8479 is a precision device that allows the user to accurately measure differential signals in the presence of high common-mode voltages up to ±600 V.
The AD8479 can replace costly isolation amplifiers in applications that do not require galvanic isolation. The device operates over a ±600 V common-mode voltage range and has inputs that are protected from common-mode or differential mode transients up to ±600 V.
The AD8479 has low offset voltage, low offset voltage drift, low gain drift, low common-mode rejection drift, and excellent common-mode rejection ratio (CMRR) over a wide frequency range.
The AD8479 is available in a space-saving 8-lead SOIC package and is operational over the −40°C to +125°C temperature range.
Applications
- High voltage current sensing
- Battery cell voltage monitors
- Power supply current monitors
- Motor controls
- Isolation
Product Categories
Markets and Technologies
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Documentation & Resources
-
AN-1375: Output Current Monitoring of High Voltage Class D Amplifiers (Rev. 0)2/4/2016PDF182 K
-
AN-1344: High Common-Mode Voltage Current Loop Transmitter Front End (Rev. 0)10/6/2015PDF195 K
-
AN-1308: Common-Mode Step Response of Current Sense Amplifiers (Rev. A)6/25/2014PDF176 kB
Tools & Simulations
LTspice
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.

Models for the following parts are available in LTspice:
SPICE Models
Design Resources
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 Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
---|---|---|---|---|
AD8479ARZ | Material Declaration | Reliability Data | 8-Lead SOIC | |
AD8479ARZ-RL | Material Declaration | Reliability Data | 8-Lead SOIC | |
AD8479BRZ | Material Declaration | Reliability Data | 8-Lead SOIC | |
AD8479BRZ-RL | Material Declaration | Reliability Data | 8-Lead SOIC | |
AD8479TRZ-EP | Material Declaration | Reliability Data | 8-Lead SOIC | |
Wafer Fabrication Data |
PCN-PDN Information
Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.
Support & Discussions
AD8479 Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.