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DAC7642VFBT - Texas Instruments

Description: 16-Bit, Dual Voltage Output DAC with Parallel Interface and Reset to Mid-Scale

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DAC7642VFBT - Texas Instruments - PCB symbol
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PCB Footprints
DAC7642VFBT - Texas Instruments PCB footprint - Quad Flat Packages - Quad Flat Packages - VF0032A
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3D Models
DAC7642VFBT - Texas Instruments - 3D model - Quad Flat Packages - VF0032A
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DAC7642VFBT Details

  • Manufacturer Part Number:

    DAC7642VFBT

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    QFP

  • Pin Count:

    32

  • Country Of Origin:

    Taiwan

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.40

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog Output Voltage-Max:

    2.5 V

  • Analog Output Voltage-Min:

    -2.5 V

  • Converter Type:

    D/A CONVERTER

  • Input Bit Code:

    BINARY

  • Input Format:

    PARALLEL, WORD

  • JESD-30 Code:

    S-PQFP-G32

  • Length:

    7 mm

  • Linearity Error-Max (EL):

    0.0046%

  • Moisture Sensitivity Level:

    1

  • Negative Supply Voltage-Nom:

    -5 V

  • Number of Bits:

    16

  • Number of Functions:

    1

  • Number of Terminals:

    32

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    LQFP

  • Package Equivalence Code:

    QFP32,.35SQ,32

  • Package Shape:

    SQUARE

  • Package Style:

    FLATPACK, LOW PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Sample Rate:

    0.1 MHz

  • Seated Height-Max:

    1.6 mm

  • Settling Time-Max:

    10 µs

  • Settling Time-Nom (tstl):

    10 µs

  • Supply Current-Max:

    0.9 mA

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    YES

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.8 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    7 mm

DAC7642VFBT Frequently Asked Questions (FAQs)

  • The recommended output buffer configuration for the DAC7642VFBT is a unity-gain buffer with a 1 kΩ to 10 kΩ resistor in series with the output, followed by a 10 nF to 100 nF capacitor to ground. This configuration helps to reduce noise and improve output stability.
  • To ensure accurate voltage output from the DAC7642VFBT, it is essential to use a high-precision voltage reference, such as the REF5025 or REF3020, and to follow proper PCB layout and grounding techniques to minimize noise and interference.
  • The maximum update rate for the DAC7642VFBT is 25 MHz, but this can be limited by the specific application and the quality of the clock signal. It is recommended to use a high-quality clock source and to follow proper clock routing and termination techniques to ensure reliable operation.
  • The POR and BOR features of the DAC7642VFBT can be handled by using an external reset controller, such as the TPS3808, to generate a reset signal that is synchronized with the power supply voltage. This helps to ensure that the DAC7642VFBT is properly reset and initialized during power-up and power-down sequences.
  • The recommended layout and routing for the DAC7642VFBT involves keeping the analog and digital signals separate, using a solid ground plane, and minimizing the length and impedance of the signal traces. It is also recommended to use a 4-layer PCB with a dedicated analog ground layer to reduce noise and interference.

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DAC7642VFBT 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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