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ADC Single SAR 4Msps 12-bit Parallel 48-Pin VQFN EP T/R, ADS7881IRGZT, Texas Instruments

The ADS7881 is a 12-bit 4-MSPS A-to-D converter with 2.5-V internal reference. The device includes a capacitor based SAR A/D converter with inherent sample and hold. The device offers a 12-bit parallel interface with an additional byte mode that provides easy interface with 8-bit processors. The device has a pseudo-differential input stage. The –IN swing of ±200 mV is useful to compensate for ground voltage mismatch between the ADC and sensor and also to cancel common-mode noise. With nap mode enabled, the device operates at lower power when used at lower conversion rates. The device is available in a 48-pin TQFP package.

  • 4 MHz Sample Rate, 12-Bit Resolution
  • Zero Latency
  • Unipolar, Pseudo Differential Input, Range:
    • 0 V to 2.5 V
  • High Speed Parallel Interface
  • 71 dB SNR and –88.5 dB THD at 1 MHz I/P
  • Power Dissipation 95 mW at 4 MSPS
  • Nap Mode (10 mW Power Dissipation)
  • Power Down (10 µW)
  • Internal Reference
  • Internal Reference Buffer
  • 48-Pin TQFP Package
  • APPLICATIONS
    • Optical Networking (DWDM, MEMS Based Switching)
    • Spectrum Analyzers
    • High Speed Data Acquisition Systems
    • High Speed Close-Loop Systems
    • Telecommunication
    • Ultra-Sound Detection

    • Характеристики

    Volt_supply_source

    Single
    Country_of_origin

    United States
    Sampling_rate

    4 Msps
    Volt_reference

    External, Internal
    Digital_supply_support

    No
    Architecture

    SAR
    Resolution

    12 Bit
    Typical_power_dissipation

    95 mW
    Differential_nonlinearity

    1 LSB
    Signal_to_noise_ratio

    71.5 dB
    Input_type

    Voltage
    Input_signal_type

    Pseudo-Differential
    Input_volt

    2.5 V
    Бренд

    Msl_level

    2
    Number_of_analog_inputs

    1
    Htsn

    8542390001
    Eccn

    EAR99
    Lead_finish

    Gold
    Max_power_dissipation

    110 mW
    Max_processing_temp

    260
    Mounting

    Surface Mount
    Operating_temp

    -40 to 85 °C
    Pin_count

    48
    Product_dimensions

    7 x 7 x 0.9 mm
    Schedule_b

    8542390000
    Specifications

    http://www.ti.com/general/docs/lit/getliterature.tsp?genericPartNumber=ADS7881&&fileType=pdf
    Supplier_package

    VQFN EP
    Polarity_of_input_volt

    Unipolar
    Operating_supply_volt

    4.75, 5 V, 5.25
    Number_of_adcs

    1
    Digital_interface_type

    Parallel
    Артикул: ADS7881IRGZT

    Описание

    The ADS7881 is a 12-bit 4-MSPS A-to-D converter with 2.5-V internal reference. The device includes a capacitor based SAR A/D converter with inherent sample and hold. The device offers a 12-bit parallel interface with an additional byte mode that provides easy interface with 8-bit processors. The device has a pseudo-differential input stage. The –IN swing of ±200 mV is useful to compensate for ground voltage mismatch between the ADC and sensor and also to cancel common-mode noise. With nap mode enabled, the device operates at lower power when used at lower conversion rates. The device is available in a 48-pin TQFP package.

  • 4 MHz Sample Rate, 12-Bit Resolution
  • Zero Latency
  • Unipolar, Pseudo Differential Input, Range:
    • 0 V to 2.5 V
  • High Speed Parallel Interface
  • 71 dB SNR and –88.5 dB THD at 1 MHz I/P
  • Power Dissipation 95 mW at 4 MSPS
  • Nap Mode (10 mW Power Dissipation)
  • Power Down (10 µW)
  • Internal Reference
  • Internal Reference Buffer
  • 48-Pin TQFP Package
  • APPLICATIONS
    • Optical Networking (DWDM, MEMS Based Switching)
    • Spectrum Analyzers
    • High Speed Data Acquisition Systems
    • High Speed Close-Loop Systems
    • Telecommunication
    • Ultra-Sound Detection

    • Детали

    Volt_supply_source

    Single
    Country_of_origin

    United States
    Sampling_rate

    4 Msps
    Volt_reference

    External, Internal
    Digital_supply_support

    No
    Architecture

    SAR
    Resolution

    12 Bit
    Typical_power_dissipation

    95 mW
    Differential_nonlinearity

    1 LSB
    Signal_to_noise_ratio

    71.5 dB
    Input_type

    Voltage
    Input_signal_type

    Pseudo-Differential
    Input_volt

    2.5 V
    Бренд

    Msl_level

    2
    Number_of_analog_inputs

    1
    Htsn

    8542390001
    Eccn

    EAR99
    Lead_finish

    Gold
    Max_power_dissipation

    110 mW
    Max_processing_temp

    260
    Mounting

    Surface Mount
    Operating_temp

    -40 to 85 °C
    Pin_count

    48
    Product_dimensions

    7 x 7 x 0.9 mm
    Schedule_b

    8542390000
    Specifications

    http://www.ti.com/general/docs/lit/getliterature.tsp?genericPartNumber=ADS7881&&fileType=pdf
    Supplier_package

    VQFN EP
    Polarity_of_input_volt

    Unipolar
    Operating_supply_volt

    4.75, 5 V, 5.25
    Number_of_adcs

    1
    Digital_interface_type

    Parallel

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