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AD7142ACPZ-500RL7 - Analog Devices

Description: AD7142ACPZ-500RL7, Capacitance to Digital Converter, 16 bit- 32-Pin LFCSP EP

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AD7142ACPZ-500RL7 - Analog Devices - PCB symbol
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PCB Footprints
AD7142ACPZ-500RL7 - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - CP-32-2(LFCSP_VQ)
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3D Models
AD7142ACPZ-500RL7 - Analog Devices - 3D model - Quad Flat No-Lead - CP-32-2(LFCSP_VQ)
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AD7142ACPZ-500RL7 Details

  • Manufacturer Part Number:

    AD7142ACPZ-500RL7

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    QFN

  • Package Description:

    MO-220VHHD-2, 32 PIN

  • Pin Count:

    32

  • Manufacturer Package Code:

    CP-32-7

  • Country Of Origin:

    Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Consumer IC Type:

    CONSUMER CIRCUIT

  • JESD-30 Code:

    S-PQCC-N32

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    32

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1 mm

  • Supply Voltage-Max (Vsup):

    3.6 V

  • Supply Voltage-Min (Vsup):

    2.6 V

  • Surface Mount:

    YES

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    5 mm

AD7142ACPZ-500RL7 Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate analog ground plane is recommended. Keep the analog and digital grounds separate and connect them at a single point. Use a star topology for the power supply connections and keep the capacitors close to the device.
  • Use a shielded enclosure, keep the device away from high-frequency sources, and use a common-mode choke or ferrite bead on the power supply lines. Ensure that the PCB layout is designed to minimize radiation and susceptibility to electromagnetic interference.
  • The device requires a one-time calibration after power-up. The calibration sequence involves applying a known capacitance to the sensor inputs and reading the output codes. The calibration data is stored in the device's internal registers and is retained even when power is cycled.
  • Use a low-pass filter or a median filter to remove high-frequency noise. Implement a noise-reduction algorithm in the microcontroller or use a dedicated noise-reduction IC. Ensure that the device is properly grounded and shielded to minimize electromagnetic interference.
  • The AD7142ACPZ-500RL7 can measure capacitances up to 500 pF. However, the device can be configured to measure smaller capacitance ranges with higher resolution. Consult the datasheet for specific configuration options.

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AD7142ACPZ-500RL7 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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