AD7998

8-Channel, 12-Bit ADC with I2C Compatible Interface in 20-Lead TSSOP
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Product Details

The AD7998 is an 8 channel, 12-bit, high speed, low power, successive-approximation ADC. The part operates from a single 2.7 V to 5.5 V power supply and features a conversion time of 2 µs. The part contains an eight channel multiplexer and track/hold amplifier.

The AD7998 provides a two-wire serial interface, which is compatible with I2C interfaces. Each part comes in two versions, AD7998-0 and AD7998-1. Each version allows for a minimum of two different I2C addresses. The I2C interface on the AD7998-0 supports Standard and Fast I2C Interface Modes. The I2C Interface on the AD7998-1 supports Standard, Fast and two High-Speed I2C Interface Modes.

Product Lifecycle

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At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits

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Product Details

The EVAL-AD7998EBZ is a fully featured evaluation Board for the AD7998. The evaluation board can be operated in complete standalone mode or connected to a PC via a standard USB interface. When operated with a PC, software is provided enabling the user to perform detailed analysis of the ADC's performance. This software includes the technical note describing the operation and set up of the evaluation board.


Documentation

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Software & Systems Requirements

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Product Recommendations

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AD7998 Companion parts

Recommended External References - 2.5V

  • For wide supply applications , we recommend the AD780, ADR03 or the AD780 .
  • For cost sensitive applications , we recommend the AD1582, ADR381 or the ADR391 .
  • For the reference buffer amplifier , we recommend the AD8605 or the AD8605 .
  • For low noise, high output current applications , we recommend the ADR431 .
  • For applications requiring 2.048V to 4.096V , we recommend the REF191 .
  • For applications requiring best accuracy, low noise, low drift , we recommend the ADR421, AD780 or the AD780 .

Recommended Input Buffer Amplifiers

  • For precision, high speed, low cost , we recommend the AD8604 .
  • For single supply, high speed, low power , we recommend the AD8031 or the AD8032 .
  • For low distortion, low noise, dual supplies , we recommend the AD8599 .
  • For precision, low noise, single supply , we recommend the AD8605 or the AD8605 .

Recommended Digital Isolators

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.

AD7998 Material Declaration
PCN-PDN Information Quality And Reliability Symbols and Footprints

Sample & Buy

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The USA 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. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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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.