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AD7945ARSZ-B - Analog Devices

Description: Analog Devices AD7945ARSZ-B, 12 bit Parallel DAC, 1.7Msps, 20-Pin SSOP

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AD7945ARSZ-B - Analog Devices - PCB symbol
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PCB Footprints
AD7945ARSZ-B - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - RS-20 (SSOP)
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AD7945ARSZ-B - Analog Devices - 3D model - Small Outline Packages - RS-20 (SSOP)
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AD7945ARSZ-B Details

  • Manufacturer Part Number:

    AD7945ARSZ-B

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SSOP

  • Package Description:

    SSOP-20

  • Pin Count:

    20

  • Manufacturer Package Code:

    RS-20

  • Country Of Origin:

    Philippines

  • 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:

    7.2 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:

    SSOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    2 mm

  • Settling Time-Nom (tstl):

    5 µs

  • Supply Voltage-Nom:

    3.3 V

  • Surface Mount:

    YES

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

  • Width:

    5.3 mm

AD7945ARSZ-B 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. Also, use a low-ESR capacitor for the AVDD and DVDD pins, and keep the decoupling capacitors close to the pins.
  • The AD7945ARSZ-B has an internal calibration circuit that calibrates the ADC during power-up. However, it's recommended to perform an external calibration by applying a known voltage to the input and adjusting the offset and gain registers accordingly.
  • The recommended input voltage range for the AD7945ARSZ-B is 0 to VREF (typically 2.5V). Operating outside this range may affect the accuracy of the conversions. It's recommended to use an input voltage that is within 10% of the VREF voltage for optimal performance.
  • The AD7945ARSZ-B has internal overvoltage protection up to 7V. However, it's recommended to use external protection circuitry, such as a voltage clamp or a resistor divider, to limit the input voltage to within the recommended range.
  • The recommended clock frequency for the AD7945ARSZ-B is between 1 MHz and 10 MHz. The conversion rate is dependent on the clock frequency, with a higher clock frequency resulting in a faster conversion rate. However, a higher clock frequency may also increase the power consumption and noise sensitivity.

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AD7945ARSZ-B Overview

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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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