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ADC Single SAR 1.25Msps 18-bit Parallel 48-Pin VQFN EP T/R, ADS8484IBRGZT, Texas Instruments

The ADS8484 is an 18-bit, 1.25-MSPS A/C converter with an internal 4.096-V reference and a pseudo-bipolar, fully differential input. The device includes a 18-bit capacitor-based SAR A/D converter with inherent sample and hold. The ADS8484 offers a full 18-bit interface, a 16-bit option where data is read using two read cycles, or an 8-bit bus option using three read cycles. The ADS8484 is available in a 48-lead 7×7 QFN package and is characterized over the industrial -40°C to 85°C temperature range.

  • 1.25-MHz Sample Rate
  • ±1.5 LSB Typ, ±2.5 LSB Max INL
  • +0.8/-0.6 LSB Typ, +1.5/-1 LSB Max DNL
  • 18-Bit NMC Ensured Over Temperature
  • ±0.5-mV Offset Error
  • TBD-PPM/°C Offset Error Drift
  • ±0.1 %FSR Gain Error
  • ±TBD-PPM/°C Gain Error Drift
  • 99dB SNR, -117db THD, 120dB SFDR
  • Zero Latency
  • Low Power: 235 mW Typ at 1.25 MSPS
  • Pseudo-Bipolar Fully Differential Input Range: Vref to -Vref
  • Onboard Reference with TBD PPM/°C Drift
  • Onboard Reference Buffer
  • High-Speed Parallel Interface
  • Wide Digital Supply 2.7 V to5.25 V
  • 8-/16-/18-Bit Bus Transfer
  • 48-Pin 7×7 QFN Package
  • APPLICATIONS
    • Medical Instruments
    • Optical Networking
    • Transducer Interface
    • High Accuracy Data Acquisition Systems
    • Magnetometers

    • Характеристики

    Volt_supply_source

    Single
    Msl_level

    2
    Sampling_rate

    1.25 Msps
    Volt_reference

    External, Internal
    Digital_supply_support

    No
    Architecture

    SAR
    Resolution

    18 Bit
    Typical_power_dissipation

    235 mW
    Differential_nonlinearity

    -1, 1.5 LSB
    Signal_to_noise_ratio

    98.5 dB
    Input_type

    Voltage
    Input_signal_type

    Differential
    Input_volt

    ±4.096 V
    Бренд

    Number_of_analog_inputs

    1
    Eccn

    3A991.C.4
    Country_of_origin

    United States
    Htsn

    8542390001
    Lead_finish

    Gold
    Mounting

    Surface Mount
    Operating_temp

    -40 to 85 °C
    Pin_count

    48
    Product_dimensions

    7 x 7 x 0.9 mm
    Schedule_b

    8542390000
    Screening_level

    Industrial
    Specifications

    http://www.ti.com/general/docs/lit/getliterature.tsp?genericPartNumber=ADS8484&&fileType=pdf
    Polarity_of_input_volt

    Bipolar
    Operating_supply_volt

    4.75, 5 V, 5.25
    Number_of_adcs

    1
    Digital_interface_type

    Parallel
    SKU: ADS8484IBRGZT

    Description

    The ADS8484 is an 18-bit, 1.25-MSPS A/C converter with an internal 4.096-V reference and a pseudo-bipolar, fully differential input. The device includes a 18-bit capacitor-based SAR A/D converter with inherent sample and hold. The ADS8484 offers a full 18-bit interface, a 16-bit option where data is read using two read cycles, or an 8-bit bus option using three read cycles. The ADS8484 is available in a 48-lead 7×7 QFN package and is characterized over the industrial -40°C to 85°C temperature range.

  • 1.25-MHz Sample Rate
  • ±1.5 LSB Typ, ±2.5 LSB Max INL
  • +0.8/-0.6 LSB Typ, +1.5/-1 LSB Max DNL
  • 18-Bit NMC Ensured Over Temperature
  • ±0.5-mV Offset Error
  • TBD-PPM/°C Offset Error Drift
  • ±0.1 %FSR Gain Error
  • ±TBD-PPM/°C Gain Error Drift
  • 99dB SNR, -117db THD, 120dB SFDR
  • Zero Latency
  • Low Power: 235 mW Typ at 1.25 MSPS
  • Pseudo-Bipolar Fully Differential Input Range: Vref to -Vref
  • Onboard Reference with TBD PPM/°C Drift
  • Onboard Reference Buffer
  • High-Speed Parallel Interface
  • Wide Digital Supply 2.7 V to5.25 V
  • 8-/16-/18-Bit Bus Transfer
  • 48-Pin 7×7 QFN Package
  • APPLICATIONS
    • Medical Instruments
    • Optical Networking
    • Transducer Interface
    • High Accuracy Data Acquisition Systems
    • Magnetometers

    • Additional information

    Volt_supply_source

    Single
    Msl_level

    2
    Sampling_rate

    1.25 Msps
    Volt_reference

    External, Internal
    Digital_supply_support

    No
    Architecture

    SAR
    Resolution

    18 Bit
    Typical_power_dissipation

    235 mW
    Differential_nonlinearity

    -1, 1.5 LSB
    Signal_to_noise_ratio

    98.5 dB
    Input_type

    Voltage
    Input_signal_type

    Differential
    Input_volt

    ±4.096 V
    Бренд

    Number_of_analog_inputs

    1
    Eccn

    3A991.C.4
    Country_of_origin

    United States
    Htsn

    8542390001
    Lead_finish

    Gold
    Mounting

    Surface Mount
    Operating_temp

    -40 to 85 °C
    Pin_count

    48
    Product_dimensions

    7 x 7 x 0.9 mm
    Schedule_b

    8542390000
    Screening_level

    Industrial
    Specifications

    http://www.ti.com/general/docs/lit/getliterature.tsp?genericPartNumber=ADS8484&&fileType=pdf
    Polarity_of_input_volt

    Bipolar
    Operating_supply_volt

    4.75, 5 V, 5.25
    Number_of_adcs

    1
    Digital_interface_type

    Parallel

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