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AD7657BSTZ-1 - Analog Devices

Description: Analog Devices AD7657BSTZ-1, 14 bit SPI, QSPI, Microwire, DSP ADC, 6-channel, 64-Pin LQFP

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AD7657BSTZ-1 - Analog Devices - PCB symbol
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AD7657BSTZ-1 - Analog Devices PCB footprint - Quad Flat Packages - Quad Flat Packages - ST-64-2 (LQFP)
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AD7657BSTZ-1 - Analog Devices - 3D model - Quad Flat Packages - ST-64-2 (LQFP)
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AD7657BSTZ-1 Details

  • Manufacturer Part Number:

    AD7657BSTZ-1

  • 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:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Analog Input Voltage-Max:

    10 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):

    0.0061%

  • Moisture Sensitivity Level:

    3

  • 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, PARALLEL, WORD

  • 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:

    0.25 mA

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    YES

  • Technology:

    BICMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    10 mm

AD7657BSTZ-1 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 and digital signals separate. Also, keep the input signals away from the digital signals and use shielding if possible. Refer to the ADI application note AN-931 for more details.
  • The AD7657BSTZ-1 has a built-in calibration process that can be initiated through the CAL pin. The calibration process involves shorting the input pins to the internal reference voltage, and then the device adjusts its internal gain and offset to match the reference voltage. Refer to the datasheet for the specific calibration procedure.
  • The recommended power-up sequence is to power up the analog supply (AVDD) first, followed by the digital supply (DVDD), and then the interface signals (e.g., SCLK, DIN, etc.). This ensures that the analog circuitry is powered up before the digital circuitry, which helps to prevent any potential latch-up conditions.
  • If the AD7657BSTZ-1 is not converting data correctly, check the following: (1) Ensure that the power supplies are stable and within the recommended range. (2) Verify that the clock signal is stable and within the recommended frequency range. (3) Check the input signal range and ensure it is within the recommended range. (4) Verify that the gain and offset settings are correct. (5) Check for any noise or interference on the input signals.
  • The maximum sampling rate of the AD7657BSTZ-1 is 250 kSPS. However, the actual sampling rate may be limited by the system's clock frequency, the input signal bandwidth, and the system's noise floor.

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AD7657BSTZ-1 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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