AD7766

PRODUCTION

24-Bit, 8.5 mW, 109 dB, 128 kSPS/64 kSPS/32 kSPS ADCs

Data Sheet (Rev. D) Product Selection Table
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Overview

  • Download AD7766-2-KGD Data Sheet. Available as Known Good Die and fully guaranteed in data sheet specifications
  • Oversampled successive approximation (SAR) architecture
  • High performance ac and dc accuracy, low power
    • 115.5 dB dynamic range, 32 kSPS (AD7766-2)
    • 112.5 dB dynamic range, 64 kSPS (AD7766-1)
    • 109.5 dB dynamic range, 128 kSPS (AD7766)
    • −112 dB THD
  • Exceptionally low power
    • 8.5 mW, 32 kSPS (AD7766-2)
    • 10.5 mW, 64 kSPS (AD7766-1)
    • 15 mW, 128 kSPS (AD7766)
  • High dc accuracy
    • 24 bits, no missing codes (NMC)
    • INL: ±6 ppm (typical), ±15 ppm (maximum)
  • Low temperature drift
  • Zero error drift: 15 nV/°C
  • Gain error drift: 0.4 ppm/°C
  • On-chip low-pass FIR filter
    • Linear phase response
    • Pass-band ripple: ±0.005 dB
    • Stop-band attenuation: 100 dB
  • 2.5 V supply with 1.8 V/2.5 V/3 V/3.6 V logic interface options and 5 V reference
  • Flexible interfacing options
    • Synchronization of multiple devices
    • Daisy-chain capability

    • The AD7766/AD7766-1/AD7766-2 are high performance, 24-bit, oversampled SAR analog-to-digital converters (ADCs). The AD7766/AD7766-1/AD7766-2 combine the benefits of a large dynamic range and input bandwidth, consuming 15 mW, 10.5 mW, and 8.5 mW power, respectively, and are contained in a 16-lead TSSOP package.

    Ideal for ultralow power data acquisition (such as PCI- and USBbased systems), the AD7766/AD7766-1/AD7766-2 provide 24-bit resolution. The combination of exceptional SNR, wide dynamic range, and outstanding dc accuracy make the AD7766/AD7766-1/ AD7766-2 ideally suited for measuring small signal changes over a wide dynamic range. This is particularly suitable for applications where small changes on the input are measured on larger ac or dc signals. In such an application, the AD7766/AD7766-1/ AD7766-2 accurately gather both ac and dc information.

    The AD7766/AD7766-1/AD7766-2 include an on-board digital filter (complete with linear phase response) that acts to eliminate out-of-band noise by filtering the oversampled input voltage. The oversampled architecture also reduces front-end antialias requirements. Other features of the AD7766/AD7766-1/AD7766-2 include a SYNC/PD (synchronization/power-down) pin, allowing the synchronization of multiple AD7766/AD7766-1/AD7766-2 devices. The addition of an SDI pin provides the option of daisy chaining multiple AD7766/AD7766-1/AD7766-2 devices.

    The AD7766/AD7766-1/AD7766-2 operate from a 2.5 V supply using a 5 V reference. The devices operate from −40°C to +105°C.

    Applications

    • Low power PCI/USB data acquisition systems
    • Low power wireless acquisition systems
    • Vibration analysis
    • Instrumentation
    • High precision medical acquisition
    AD7766
    24-Bit, 8.5 mW, 109 dB, 128 kSPS/64 kSPS/32 kSPS ADCs
    AD7766-fbl 339190159AD7766-pc
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    Documentation

    Data Sheet 2

    User Guide 1

    Technical Articles 2

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    Software Resources

    Device Drivers 1

    Hardware Ecosystem

    Parts Product Life Cycle Description
    Differential Amplifiers 2
    ADA4941-1
    		PRODUCTION Single-Supply, Differential 18-Bit ADC Driver
    AD8475
    		PRODUCTION Precision, Selectable Gain, Fully Differential Funnel Amplifier
    LDO Linear Regulators 2
    ADP150
    		PRODUCTION Ultralow Noise, 150 mA CMOS Linear Regulator
    ADP151
    		PRODUCTION Ultralow Noise, 200 mA, CMOS Linear Regulator
    Operational Amplifiers (Op Amps) 1
    ADA4841-1
    		PRODUCTION Low Power, Low Noise and Distortion, Rail-to-Rail Output Amplifier
    Voltage References 6
    ADR445
    		PRODUCTION Ultralow Noise, LDO XFET® 5.0V Voltage Reference w/Current Sink and Source
    ADR435
    		PRODUCTION Ultralow Noise XFET® Voltage References with Current Sink and Source Capability
    ADR425
    		PRODUCTION Ultraprecision, Low Noise, 5.00 V XFET® Voltage Reference
    ADR441
    		PRODUCTION Ultralow Noise, LDO XFET® 2.5V Voltage Reference w/Current Sink and Source
    ADR431
    		PRODUCTION Ultralow Noise XFET® Voltage References with Current Sink and Source Capability
    ADR421
    		PRODUCTION Ultraprecision, Low Noise, 2.500 V XFET® Voltage References
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    Evaluation Kits

    EVAL-AD7766

    AD7766/AD7766-1/AD7766-2 Evaluation Kit

    Buy Now View Details

    Product Details

    The EVAL-AD7766EDZ/EVAL-AD7766-1EDZ/EVAL-AD7766-2EDZ is a fully featured evaluation board for the AD7766/AD7766-1/AD7766-2 respectively.This board operates in stand alone mode or in conjunction with the Converter Evaluation and Development board, EVAL-CED1Z . When operated with the Converter Evaluation and Development 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 Converter Evaluation and Development board.


    Please note: This Evaluation software was compiled in Windows 7 and compatibility with later OS is not guaranteed.
    EVAL-AD7766
    AD7766/AD7766-1/AD7766-2 Evaluation Kit

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