AD8479: Very High Common-Mode Voltage Precision Difference Amplifier Data Sheet (Rev. C)1/29/2021387 K
AD8479-DSCC: Military Data Sheet10/7/2019
AD8479-EP: Very High Common-Mode Voltage Precision Difference Amplifier (Rev. 0)6/18/2019213 K
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
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.
- High voltage current sensing
- Battery cell voltage monitors
- Power supply current monitors
- Motor controls
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)
The AD8479R-EBZ is specifically designed to aid the evaluation of the AD8479, a very high common-mode voltage precision difference amplifier. The design of this board emphasizes simplicity and ease of use. This board comes with connection options for the input and output terminals (SMA and Vector pins) and a predefined configuration with the reference pins both tied to ground.
See the AD8479R-EBZ documentation and AD8479 data sheet for additional information.
Documentation & Resources
AN-1375: Output Current Monitoring of High Voltage Class D Amplifiers (Rev. 0)2/4/2016182 K
AN-1344: High Common-Mode Voltage Current Loop Transmitter Front End (Rev. 0)10/6/2015195 K
AN-1308: Common-Mode Step Response of Current Sense Amplifiers (Rev. A)6/25/2014176 kB
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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|
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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.