24-Bit, 8/10-Channel, Low Voltage, Low Power, Sigma Delta ADC

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Product Details

The AD7708/18 are complete analog front-ends for low frequency measurement applications. The AD7718 contains a 24-bit sigma delta ADC with PGA and can be configured as 4/5 fully-differential input channels or 8/10 pseudo-differential input channels. Two pins on the device are configurable as analog inputs or reference inputs. The AD7708 is a 16-bit version of the AD7718. Inputs signal ranges from 20mV to 2.56V can be directly converted using these ADCs. Signals can be converted directly from a transducer without the need for signal conditioning.

Alternative Parts

Evaluation Kits


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Product Details

The EVAL-AD7718EBZ is a fully featured evaluation Board for the AD7718. The evaluation board can be connected to a PC via the parallel port. Software is provided enabling the user to perform detailed analysis of the ADC's performance.


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Software & Systems Requirements


Evaluation Software

Tools & Simulations

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IBIS Models

Design Tools

Product Recommendations

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AD7718 Companion Parts

Recommended Digital Isolators * For optocoupler alternatives, see our digital isolator selection tables

Recommended Voltage References

  • For precision 1.2V applications with AVdd = 3V , we recommend the AD589, AD1580 or the ADR512 .
  • For precision 2.5V applications with AVdd = 5V , we recommend the AD780, REF43 or the REF192 .

Design Resources

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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.

AD7718 Material Declaration
PCN-PDN Information Quality And Reliability Symbols and Footprints




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Evaluation Boards Pricing displayed is based on 1-piece.
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.