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AD7657BSTZ - Analog Devices

Description: ADC

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AD7657BSTZ - Analog Devices PCB footprint - Quad Flat Packages - Quad Flat Packages - ST-64-2 (LQFP)
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AD7657BSTZ - Analog Devices  - 3D model - Quad Flat Packages - ST-64-2 (LQFP)
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AD7657BSTZ Details

  • Manufacturer Part Number:

    AD7657BSTZ

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    QFP

  • Package Description:

    ROHS COMPLIANT, MS-026BCD, LQFP-64

  • Pin Count:

    64

  • Manufacturer Package Code:

    ST-64-2

  • Country Of Origin:

    Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Analog Input Voltage-Max:

    12 V

  • Analog Input Voltage-Min:

    -10 V

  • Conversion Time-Max:

    3.1 µs

  • Converter Type:

    ADC, SUCCESSIVE APPROXIMATION

  • JESD-30 Code:

    S-PQFP-G64

  • JESD-609 Code:

    e3

  • Length:

    10 mm

  • Linearity Error-Max (EL):

    0.0092%

  • Moisture Sensitivity Level:

    3

  • Negative Supply Voltage-Nom:

    -5 V

  • Number of Analog In Channels:

    6

  • Number of Bits:

    14

  • Number of Functions:

    1

  • Number of Terminals:

    64

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Bit Code:

    2S COMPLEMENT BINARY

  • Output Format:

    SERIAL

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    LFQFP

  • Package Equivalence Code:

    QFP64,.47SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    FLATPACK, LOW PROFILE, FINE PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Sample Rate:

    0.25 MHz

  • Sample and Hold / Track and Hold:

    TRACK

  • Seated Height-Max:

    1.6 mm

  • Supply Current-Max:

    10 mA

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    10 mm

AD7657BSTZ Frequently Asked Questions (FAQs)

  • The recommended power-up sequence is to apply VDD first, followed by VREF, and then the analog input signal. This ensures proper operation and prevents damage to the device.
  • To optimize the analog input signal range, ensure that the input signal is within the specified range of 0 to VREF. You can also adjust the gain of the external amplifier or attenuator to match the input signal range to the ADC's input range.
  • To minimize noise and ensure proper operation, keep the analog and digital signal traces separate, use a solid ground plane, and avoid running digital signals near the analog input pins. Also, use a low-ESR capacitor for the VREF pin and a 0.1uF capacitor for the AVDD pin.
  • The BUSY signal indicates when the ADC is converting. You can use this signal to synchronize your system's operation with the ADC's conversion process. For example, you can use it to gate the clock signal or to trigger other events in your system.
  • The AD7657BSTZ's performance is affected by temperature. The device's offset and gain errors increase with temperature, and the conversion rate slows down. Ensure that your system design takes into account the operating temperature range and compensates for these effects.

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AD7657BSTZ 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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