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AD7643BSTZ - Analog Devices

Description: Analog Devices AD7643BSTZ, 18-bit Parallel ADC Differential Input, 48-Pin LQFP

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AD7643BSTZ - Analog Devices PCB footprint - Quad Flat Packages - Quad Flat Packages - ST-48 (LQFP)
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AD7643BSTZ - Analog Devices  - 3D model - Quad Flat Packages - ST-48 (LQFP)
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AD7643BSTZ Details

  • Manufacturer Part Number:

    AD7643BSTZ

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    QFP

  • Package Description:

    LEAD FREE, MS-026BBC, LQFP-48

  • Pin Count:

    48

  • Manufacturer Package Code:

    ST-48

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Analog Input Voltage-Max:

    2.5 V

  • Analog Input Voltage-Min:

    -2.5 V

  • Conversion Time-Max:

    0.55 µs

  • Converter Type:

    ADC, SUCCESSIVE APPROXIMATION

  • JESD-30 Code:

    S-PQFP-G48

  • JESD-609 Code:

    e3

  • Length:

    7 mm

  • Linearity Error-Max (EL):

    0.0011%

  • Moisture Sensitivity Level:

    3

  • Number of Analog In Channels:

    1

  • Number of Bits:

    18

  • Number of Functions:

    1

  • Number of Terminals:

    48

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Bit Code:

    BINARY, 2'S COMPLEMENT BINARY

  • Output Format:

    PARALLEL, WORD

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    LFQFP

  • Package Equivalence Code:

    QFP48,.35SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    FLATPACK, LOW PROFILE, FINE PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Sample Rate:

    1.25 MHz

  • Sample and Hold / Track and Hold:

    SAMPLE

  • Seated Height-Max:

    1.6 mm

  • Supply Voltage-Nom:

    2.5 V

  • Surface Mount:

    YES

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    7 mm

AD7643BSTZ Frequently Asked Questions (FAQs)

  • The recommended power-up sequence is to apply VDD first, followed by VIO, and then the clock signal. This ensures that the internal voltage regulators are powered up correctly.
  • To optimize the analog input range, ensure that the analog input signal is within the specified range of 0 to VREF (typically 2.5V or 5V). You can also adjust the gain of the analog signal using the PGA (Programmable Gain Amplifier) to maximize the dynamic range.
  • The maximum sampling rate of the AD7643BSTZ is 250 kSPS (kilosamples per second). However, the actual sampling rate may be limited by the system clock frequency and the conversion mode (e.g., single-shot or continuous conversion).
  • To handle overvoltage conditions, use external voltage limiting resistors or clamping diodes to prevent damage to the device. Additionally, consider using input protection circuits, such as voltage dividers or attenuators, to reduce the input signal amplitude.
  • The SYNC pin is used to synchronize the conversion process with an external clock signal. It allows the AD7643BSTZ to operate in a synchronized mode, ensuring that the conversion process is triggered by the rising edge of the SYNC signal.

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AD7643BSTZ 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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Part Image AD7643BSTZRL Analog Devices Inc

ADC, Successive Approximation, 18-Bit, 1 Func, 1 Channel, Parallel, Word Access, PQFP48