Data Sheet Rev. 0
JP Rev. 0

Alternative Parts

AD7988-5
AD7988-5

Lower Power, with SPI Interface, Smaller Package

Overview

Features and Benefits

  • 2.5 V Internal Reference:
    Typical Drift 3 ppm/ºC Guaranteed Max Drift 15 ppm/ºC
  • Throughput: 500 kSPS
  • INL: ±2.5 LSB Max (±0.0038% of Full Scale)
  • 16 Bits Resolution with No Missing Codes
  • S/(N+D): 88 dB max @ 20 kHz
  • THD: -96 dB max @ 20 kHz
  • Analog Input Voltage Range: 0 V to 2.5 V
  • No Pipeline Delay
  • SPI®/QSPI™/MICROWIRE™/DSP Compatible
  • Parallel and Serial 5 V/3 V Interface
  • Single 5 V Supply Operation
  • Power Dissipation:
    66 mW typ, 132 µW @ 1 kSPS
    without REF 81 mW typ with REF
  • Package:
    48-Lead Quad Flat Pack (LQFP)
    48-Lead Chip Scale Package (LFCSP)
    Pin-to-Pin Compatible with
    PulSAR® ADCs

Product Details

The AD7666 is a 16-bit, 500 kSPS, charge redistribution SAR analog-to-digital converter that operates from a single 5 V power supply. The part contains a high speed, 16-bit sampling ADC, an internal conversion clock, internal reference, error correction circuits, and both serial and parallel system interface ports. The AD7666 is hardware factory-calibrated and comprehensively tested to ensure ac parameters such as signal-to-noise ratio (SNR) and total harmonic distortion (THD), in addition to the more traditional dc parameters of gain, offset, and linearity.

The AD7666 is available in a 48-lead LQFP and a tiny 48-lead LFCSP, with operation specified from –40°C to +85°C.

PRODUCT HIGHLIGHTS

  1. Fast Throughput.
    The AD7666 is a 500 kSPS, charge redistribution, 16-bit SAR ADC with internal error correction circuitry.
  2. Superior INL.
    The AD7666 has a maximum integral nonlinearity of 2.0 LSB with no missing 16-bit codes.
  3. Internal Reference.
    The AD7666 has an internal reference with a typical temperature drift of 3 ppm/°C.
  4. Single-Supply Operation.
    The AD7666 operates from a single 5 V supply. Its power dissipation decreases with throughput.
  5. Serial or Parallel Interface.
    Versatile parallel or 2-wire serial interface arrangement is compatible with both 3 V and 5 V logic.

APPLICATIONS

  • Data acquisition
  • Medical instruments
  • Digital signal processing
  • Spectrum analysis
  • Instrumentation
  • Battery-powered systems
  • Process control

Product Categories

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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 (1)

Documentation & Resources

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  • Data Sheets (1)
  • Application Notes (1)
  • Product Highlight (1)
  • Technical Articles (1)
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    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.

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    Quality And Reliability
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    PCN-PDN Information

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    • AD7666ASTZ Production
    • AD7666ASTZRL Production

    Support & Discussions

    AD7666 Discussions

    RE: AD7679 Drive by Single-Ended Signal
    RE: EVAL-AD7655EDZ users guide
    RE: ADC with really "True differential input"
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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.