AD7983:  16-Bit, 1.33 MSPS PulSAR ADC in MSOP/QFN

The AD7983 is a 16-bit, successive approximation, analog-to-digital converter (ADC) that operates from a single power supply, VDD. It contains a low power, high speed, 16-bit sampling ADC ...More

AD7983:  16-Bit, 1.33 MSPS PulSAR ADC in MSOP/QFN

Product Description

The AD7983 is a 16-bit, successive approximation, analog-to-digital converter (ADC) that operates from a single power supply, VDD. It contains a low power, high speed, 16-bit sampling ADC and a versatile serial interface port. On the CNV rising edge, it samples an analog input IN+ between 0 V to REF with respect to a ground sense IN−. The reference voltage, REF, is applied externally and can be set independent of the supply voltage, VDD. Its power scales linearly with throughput.

The SPI-compatible serial interface also features the ability, using the SDI input, to daisy-chain several ADCs on a single, 3-wire bus and provides an optional busy indicator. It is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic, using the separate supply VIO.

The AD7983 is housed in a 10-lead MSOP or a 10-lead QFN1 (LFCSP) with operation specified from −40°C to +85°C.

1QFN package in development. Contact sales for samples and availability.

Applications

  • Battery-powered equipment
  • Communications
  • ATE
  • Data acquisitions
  • Medical instruments

    • Features

    • 16-bit resolution with no missing codes
    • Throughput: 1.33 MSPS
    • Low power dissipation: 10.5 mW typical @ 1.33 MSPS
    • INL: ±0.6 LSB typical, ±1.25 LSB maximum
    • Pseudo differential analog input range
      0 V to VREF with VREF between 2.9 V to 5.5 V
      Any input range and easy to drive with the ADA4841
    • SINAD: 91.6 dB @ 10 kHz
    • THD: −115 dB @ 10 kHz
    • No pipeline delay
    • Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V logic interface
    • Serial interface SPI-/QSPI™-/MICROWIRE™-/DSP-compatible
    • Daisy-chain multiple ADCs and busy indicator

    Diagrams

    AD7983 Diagram
    Functional Block Diagram for AD7983

    Specifications

    Resolution (Bits) 16bit
    T-Put Rate 1.33MSPS
    # Chan 1
    Supply V Single(+2.5)
    Pwr Diss (max) 12mW
    Interface Ser,SPI
    Ain Range Uni (Vref)
    SNR (dB) 92dB
    Pkg Type CSP,SOP

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    Part# Res Throughput Rate # of Inputs Operating Pwr Diss
    AD7983 16 1.33MSPS 1 12mW
    AD7472 12 1.5MSPS 1 12mW
    AD7470 10 1.75MSPS 1 12mW
    AD7623 16 1.33MSPS 1 55mW
    AD7622 16 2MSPS 1 85mW
    AD7621 16 3MSPS 1 86mW
    AD7400 16 10MSPS 1 90mW