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ADS774KU - Texas Instruments

Description: Microprocessor-Compatible Sampling CMOS A/D Converter

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ADS774KU - Texas Instruments - PCB symbol
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PCB Footprints
ADS774KU - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW (R-PDSO-G28)
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ADS774KU - Texas Instruments - 3D model - Small Outline Packages - DW (R-PDSO-G28)
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ADS774KU Details

  • Manufacturer Part Number:

    ADS774KU

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Pin Count:

    28

  • Country Of Origin:

    Taiwan

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.30

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog Input Voltage-Max:

    5.5 V

  • Analog Input Voltage-Min:

    4.5 V

  • Conversion Time-Max:

    8.5 µs

  • Converter Type:

    ADC, SUCCESSIVE APPROXIMATION

  • JESD-30 Code:

    R-PDSO-G28

  • JESD-609 Code:

    e4

  • Length:

    17.9 mm

  • Linearity Error-Max (EL):

    0.0122%

  • Moisture Sensitivity Level:

    3

  • Negative Supply Voltage-Nom:

    -15 V

  • Number of Analog In Channels:

    1

  • Number of Bits:

    12

  • Number of Functions:

    1

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Bit Code:

    BINARY, OFFSET BINARY

  • Output Format:

    PARALLEL, WORD

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP28,.4

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Sample Rate:

    0.117 MHz

  • Sample and Hold / Track and Hold:

    SAMPLE

  • Seated Height-Max:

    2.65 mm

  • Supply Current-Max:

    24 mA

  • Supply Voltage-Min:

    4.5 V

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    7.5 mm

ADS774KU Frequently Asked Questions (FAQs)

  • A good layout and routing practice is to keep the analog and digital grounds separate, use a solid ground plane, and keep the analog signal traces away from the digital signal traces. Additionally, use a low-ESR capacitor for the AVDD pin and a 0.1uF capacitor for the REF pin.
  • The ADS774KU has an internal calibration circuit that can be enabled by setting the CAL pin high. The device will then perform a self-calibration sequence. It's recommended to perform calibration after power-up and after any changes to the reference voltage or input range.
  • The recommended input signal range for the ADS774KU is 0 to VREF. For overvoltage conditions, it's recommended to use external protection circuitry such as a voltage clamp or a resistive divider to limit the input voltage to within the recommended range.
  • The ADS774KU can be interfaced with a microcontroller using a serial interface (SPI or I2C). Key considerations for data transfer include ensuring proper synchronization, using a suitable clock frequency, and handling data formatting and byte ordering.
  • Key power management considerations for the ADS774KU include using a low-dropout regulator for the AVDD pin, minimizing digital activity during conversions, and using the power-down mode when not in use. Additionally, consider using a low-power microcontroller and optimizing the system's overall power budget.

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ADS774KU Overview

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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ADS774KU Alternates

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For a full list of alternate parts for ADS774KU, check out Findchips.com