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AD7854ARZ - Analog Devices

Description: AD7854ARZ, 12 bit ADC Differential,, Parallel, 28-Pin SOIC W

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AD7854ARZ - Analog Devices - PCB symbol
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PCB Footprints
AD7854ARZ - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - R-28 (SOIC)
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AD7854ARZ - Analog Devices - 3D model - Small Outline Packages - R-28 (SOIC)
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AD7854ARZ Details

  • Manufacturer Part Number:

    AD7854ARZ

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Package Description:

    SOIC-28

  • Pin Count:

    28

  • Manufacturer Package Code:

    RW-28

  • Country Of Origin:

    Taiwan

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Analog Input Voltage-Max:

    1.25 V

  • Analog Input Voltage-Min:

    -1.25 V

  • Conversion Time-Max:

    4.6 µs

  • Converter Type:

    ADC, SUCCESSIVE APPROXIMATION

  • JESD-30 Code:

    R-PDSO-G28

  • JESD-609 Code:

    e3

  • Length:

    17.9 mm

  • Linearity Error-Max (EL):

    0.0244%

  • Moisture Sensitivity Level:

    1

  • 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, 2S COMPLEMENT 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:

    0.2 MHz

  • Sample and Hold / Track and Hold:

    TRACK

  • Seated Height-Max:

    2.65 mm

  • Supply Current-Max:

    5.5 mA

  • Supply Voltage-Nom:

    3.6 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

AD7854ARZ Frequently Asked Questions (FAQs)

  • A good layout and routing practice is to keep the analog and digital signals separate, use a solid ground plane, and keep the analog input traces short and away from digital signals. Also, use a low-ESR capacitor for the VREF pin and a 0.1uF capacitor for the AVDD pin. Refer to the AD7854ARZ evaluation board layout as a reference.
  • The AD7854ARZ has an internal calibration circuit that can be initiated by setting the CAL bit in the control register. The calibration process takes about 100us and should be done after power-up and before taking any conversions. It's also recommended to recalibrate the device after any changes to the reference voltage or analog input range.
  • The maximum sampling rate of the AD7854ARZ is 200ksps. To achieve this rate, set the CLKDIV bit in the control register to 0, and use an external clock source with a frequency of at least 4MHz. Also, ensure that the analog input signals are properly filtered and settled before taking conversions.
  • The AD7854ARZ has internal overvoltage protection on the analog input pins, but it's still recommended to use external protection circuitry such as clamping diodes or voltage-limiting resistors to prevent damage from excessive voltage. Also, ensure that the analog input signals are within the specified range to prevent saturation or clipping.
  • Yes, the AD7854ARZ can be used in a multiplexed configuration. To do this, connect multiple analog input signals to the input pins, and use the MUX bits in the control register to select the desired input channel. The device can handle up to 4 input channels in multiplexed mode.

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AD7854ARZ 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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AD7854ARZ Alternates

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Part Image AD7854ARZ-REEL Analog Devices Inc

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Part Image AD7854AR-REEL Analog Devices Inc

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For a full list of alternate parts for AD7854ARZ, check out Findchips.com