AD7655

Low Cost, 4-Channel, 1 MSPS 16-Bit PulSAR® A/D Converter
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Product Details

The AD7655 is a low cost four channel 16-bit, charge redistribution SAR, Analog-to-Digital Converter which operates from a single 5 Volt power supply. It contains two low noise, wide bandwidth track/hold amplifiers which allow simultaneous sampling, a high-speed 1 MSPS 16-Bit sampling ADC, an internal conversion clock, error correction circuits, and both serial and parallel system interface ports.

Each track/hold has a multiplexer to provide a four-channel ADC.

It features a very high sampling rate mode (Normal) and, for low power applications, a reduced power mode (Impulse) where the power is scaled with the throughput. It is available in a 48-lead LQFP or a 48-lead LFCSP with operation specified from –40°C to +85°C.

The AD7655-EP supports defense and aerospace applications (AQEC standard)

APPLICATIONS

  • AC motor control
  • 3-phase power control
  • 4-channel data acquisition
  • Uninterrupted power supplies
  • Communications

Product Lifecycle

checked Production

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-AD7655CBZ is a fully featured evaluation kit for the AD7655. This board operates in stand alone mode or in conjunction with the Evaluation Controller board . When operated with the Evaluation Controller board, 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 in standalone operation or when operated with the Evaluation Controller board.

Documentation

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Product Recommendations

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AD7655 Companion Parts

Recommended Digital Isolators

  • For SPI Interface, smallest package, low voltage I/O (1.8 V to 5.5 V) , we recommend the ADUM3481 .
  • For SPI Interface, enhanced system-level ESD performance, 2.5 kVrms isolation , we recommend the ADUM3401 .
  • For SPI Interface, lowest power, 2.5 kVrms isolation , we recommend the ADUM1401 .
  • For SPI Interface, low power, 5.0 kVrms isolation , we recommend the ADUM4401 .

Recommended External Voltage References - 2.5V

  • For high accuracy, low noise, low temperature drift , we recommend the ADR421, ADR431 or the ADR4525 .
  • For applications requiring the lowest noise performance and output trim adjust , we recommend the ADR441 .
  • For cost sensitive applications , we recommend the AD1582, ADR391 or the AD8605 .
  • For wide supply applications , we recommend the AD780 .

Recommended Driver Amplifiers

Recommended Voltage Regulators

  • For high current switching regulators with inputs up to 5V , we recommend the ADP2114 .
  • For low dropout regulators with inputs up to 5V , we recommend the ADP151 or the ADP160 .

Reference Materials

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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.

AD7655 Material Declaration
PCN-PDN Information Quality And Reliability Symbols and Footprints

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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.