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AD7945BRZ - Analog Devices

Description: AD7945BRZ, 12 bit-Bit DAC 1.7Msps, Parallel, 20-Pin SOIC W

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AD7945BRZ - Analog Devices - PCB symbol
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AD7945BRZ - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - R-20 (SOIC)
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AD7945BRZ - Analog Devices - 3D model - Small Outline Packages - R-20 (SOIC)
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AD7945BRZ Details

  • Manufacturer Part Number:

    AD7945BRZ

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Package Description:

    SOP-20

  • Pin Count:

    20

  • Manufacturer Package Code:

    RW-20

  • Country Of Origin:

    Taiwan

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Converter Type:

    D/A CONVERTER

  • Input Bit Code:

    BINARY, OFFSET BINARY

  • Input Format:

    PARALLEL, WORD

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e3

  • Length:

    12.8 mm

  • Linearity Error-Max (EL):

    0.0122%

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    12

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP20,.4

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    2.65 mm

  • Settling Time-Max:

    0.6 µs

  • Settling Time-Nom (tstl):

    0.6 µs

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    7.5 mm

AD7945BRZ 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 and DVDD pins, and keep the decoupling capacitors close to the pins.
  • To optimize the AD7945BRZ for low-power applications, use the lowest possible clock frequency, disable the internal reference, and use the power-down mode when not converting. Additionally, consider using a lower supply voltage and reducing the analog input range to minimize power consumption.
  • The recommended calibration procedure for the AD7945BRZ involves a full-scale calibration, followed by a zero-scale calibration. The full-scale calibration involves applying the maximum analog input voltage and adjusting the offset and gain to achieve the desired output code. The zero-scale calibration involves applying 0V analog input voltage and adjusting the offset to achieve the desired output code.
  • The AD7945BRZ's digital output data is in a 16-bit twos-complement format. To handle the data in your microcontroller or FPGA, you need to configure the data interface to match the AD7945BRZ's output format. You may also need to perform data formatting and scaling to convert the output code to a usable format.
  • To mitigate EMI and RFI when using the AD7945BRZ, use a shielded enclosure, keep the analog signal traces away from the digital signal traces, and use a common-mode choke or ferrite bead to filter the analog input signals. Additionally, use a low-pass filter to filter the analog input signals and reduce high-frequency noise.

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AD7945BRZ Overview

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To find more CAD model downloads similar to this part, try a partial part number search, like AD794, or try a keyword search, such as Digital to Analog Converters

About Analog Devices

Analog Devices Inc. is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits and software solutions for the industrial, automotive, healthcare, communications industries. Analog Devices serves a diverse range of markets including industrial, automotive, healthcare, energy, aerospace, defense, and consumer electronics industries. Analog Devices’ product portfolio includes a wide range of ICs, modules, and subsystems.

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