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  5. AD7403


Overview

Features and Benefits

  • 5 MHz to 20 MHz external clock input rate
  • 16 bits, no missing codes
  • Signal to noise ratio (SNR): 88 dB (typical)
  • Effective number of bits (ENOB): 14.2 bits typical
  • Typical offset drift vs. temperature: 1.6 μV/°C typical
  • On-board digital isolator
  • On-board reference
  • See data sheet for additional features
AD7403-EP supports defense and aerospace applications (AQEC standard)
  • Download AD7403-EP data sheet
  • Military temperature range: −55°C to +125°C
  • Controlled manufacturing baseline
  • One assembly/test site
  • One fabrication site
  • Enhanced product change notification
  • Qualification data available on request
  • V62/16625 DSCC Drawing Number

Product Details

The AD7403 is a high performance, second-order, Σ-Δ modulator that converts an analog input signal into a high speed, single-bit data stream, with on-chip digital isolation based on Analog Devices, Inc., iCoupler® technology. The AD7403 operates from a 5 V (VDD1) power supply and accepts a differential input signal of ±250 mV (±320 mV full-scale). The differential input is ideally suited to shunt voltage monitoring in high voltage applications where galvanic isolation is required.

The analog input is continuously sampled by a high performance analog modulator, and converted to a ones density digital output stream with a data rate of up to 20 MHz. The original information can be reconstructed with an appropriate digital filter to achieve 88 dB signal to noise ratio (SNR) at  78.1 kSPS. The serial input/output can use a 5 V or a 3 V supply (VDD2).

The serial interface is digitally isolated. High speed complementary metal oxide semiconductor (CMOS) technology, combined with monolithic transformer technology, means the on-chip isolation provides outstanding performance characteristics, superior to alternatives such as optocoupler devices. The AD7403 device is offered in a 16-lead, wide-body SOIC package and has an operating temperature range of −40°C to +125°C. The AD7403-8 device is offered in an 8-lead, wide-body SOIC package and has an operating temperature range of −40°C to +105°C.

Applications

  • Shunt current monitoring
  • AC motor controls
  • Power and solar inverters
  • Wind turbine inverters
  • Data acquisition systems
  • Analog-to-digital and opto-isolator replacements

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 (5)

Documentation & Resources

  • View All (32)
  • Data Sheets (3)
  • Application Notes (2)
  • User Guides (1)
  • Safety and Regulatory Compliance (1)
  • Informational (1)
  • Product Selection Guide (1)
  • Videos (9)
  • Technical Articles (12)
  • Webcasts (2)
  • Videos
    Technical Articles

    Software & Systems Requirements

    Tools & Simulations

    Virtual Eval - BETA

    Virtual Eval is a web application to assist designers in product evaluation of ADCs, DACs, and other ADI products. Using detailed models on Analog’s servers, Virtual Eval simulates crucial part performance characteristics within seconds. Configure operating conditions such as input tones and external jitter, as well as device features like gain or digital down-conversion. Performance characteristics include noise, distortion, and resolution, FFTs, timing diagrams, response plots, and more.

    VirtualEval

    Product Recommendations

    AD7403 Companion Parts

    Recommended DC/DC Converters

    Recommended Processor for the AD7403

    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
    AD7403-8BRIZ Material Declaration Reliability Data 8-Lead SOIC (Increased Creepage)
    AD7403-8BRIZ-RL Material Declaration Reliability Data 8-Lead SOIC (Increased Creepage)
    AD7403-8BRIZ-RL7 Material Declaration Reliability Data 8-Lead SOIC (Increased Creepage)
    AD7403BRIZ Material Declaration Reliability Data 16-Lead SOIC (Increased Creepage)
    AD7403BRIZ-RL Material Declaration Reliability Data 16-Lead SOIC (Increased Creepage)
    AD7403BRIZ-RL7 Material Declaration Reliability Data 16-Lead SOIC (Increased Creepage)
    AD7403TRIZ-EP Material Declaration Reliability Data 16-Lead SOIC (Increased Creepage)
    AD7403TRIZ-EP-RL7 Material Declaration Reliability Data 16-Lead SOIC (Increased Creepage)
    Wafer Fabrication Data

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    Sample & Buy


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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.