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AD7864ASZ-2 - Analog Devices

Description: 12-Bit ADC

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AD7864ASZ-2 - Analog Devices - PCB symbol
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AD7864ASZ-2 - Analog Devices PCB footprint - Quad Flat Packages - Quad Flat Packages - S-44-2 (MQFP)
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AD7864ASZ-2 - Analog Devices - 3D model - Quad Flat Packages - S-44-2 (MQFP)
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AD7864ASZ-2 Details

  • Manufacturer Part Number:

    AD7864ASZ-2

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    QFP

  • Package Description:

    PLASTIC, MO-112-AA, MQFP-44

  • Pin Count:

    44

  • Manufacturer Package Code:

    S-44-2

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Analog Input Voltage-Max:

    5 V

  • Conversion Time-Max:

    1.65 µs

  • Converter Type:

    ADC, SUCCESSIVE APPROXIMATION

  • JESD-30 Code:

    S-PQFP-G44

  • JESD-609 Code:

    e3

  • Length:

    10 mm

  • Linearity Error-Max (EL):

    0.0244%

  • Moisture Sensitivity Level:

    3

  • Number of Analog In Channels:

    4

  • Number of Bits:

    12

  • Number of Functions:

    1

  • Number of Terminals:

    44

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Bit Code:

    BINARY

  • Output Format:

    PARALLEL, WORD

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    QFP

  • Package Equivalence Code:

    QFP44,.57SQ,32

  • Package Shape:

    SQUARE

  • Package Style:

    FLATPACK

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Sample Rate:

    0.13 MHz

  • Sample and Hold / Track and Hold:

    TRACK

  • Seated Height-Max:

    2.45 mm

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    YES

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.8 mm

  • Terminal Position:

    QUAD

  • Width:

    10 mm

AD7864ASZ-2 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 VREF pin and keep it close to the pin.
  • The AD7864ASZ-2 has an internal calibration circuit that can be used to calibrate the device. The calibration process involves shorting the VIN+ and VIN- pins together and applying a known voltage to the VREF pin. The device will then adjust its internal gain and offset to match the applied voltage.
  • The maximum sampling rate of the AD7864ASZ-2 is 100 kSPS. However, the actual sampling rate may be limited by the conversion time, which is approximately 2.5 μs. Additionally, the sampling rate may also be limited by the settling time of the analog input signal.
  • Common causes of incorrect conversion include incorrect voltage supply, incorrect reference voltage, and noise on the analog input signal. To troubleshoot, check the power supply voltage, reference voltage, and analog input signal for noise and distortion. Also, ensure that the device is properly calibrated and the analog input signal is within the specified range.
  • The recommended power-up sequence is to apply the analog power supply (VCC) first, followed by the digital power supply (VDD). This sequence is important to prevent the device from drawing excessive current during power-up, which can cause damage to the device.

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AD7864ASZ-2 Overview

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To find more CAD model downloads similar to this part, try a partial part number search, like AD786, or try a keyword search, such as Analog to Digital 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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