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  5. AD8479


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

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 Lifecycle icon-recommended 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

  • View All (11)
  • Data Sheets (3)
  • Application Notes (3)
  • User Guides (1)
  • Technical Books (1)
  • Press Releases (1)
  • Technical Articles (1)
  • Rarely Asked Questions (1)
  • Tools & Simulations

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    AD8479

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    Design Resources

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    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.