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AD7730BR - Analog Devices

Description: Analog to Digital Converters - ADC CMOS 24-Bit Bridge Transducer

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AD7730BR Details

  • Manufacturer Part Number:

    AD7730BR

  • Source Url Status Check Date:

    2013-05-01 14:56:20.182

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    SOIC-24

  • Pin Count:

    24

  • Manufacturer Package Code:

    RW-24

  • HTS Code:

    8542.39.00.30

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    0

  • Analog Input Voltage-Max:

    0.8 V

  • Analog Input Voltage-Min:

    -0.8 V

  • Converter Type:

    ADC, DELTA-SIGMA

  • JESD-30 Code:

    R-PDSO-G24

  • JESD-609 Code:

    e0

  • Length:

    15.4 mm

  • Linearity Error-Max (EL):

    0.0018%

  • Moisture Sensitivity Level:

    3

  • Number of Analog In Channels:

    2

  • Number of Bits:

    19

  • Number of Functions:

    1

  • Number of Terminals:

    24

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Bit Code:

    BINARY

  • Output Format:

    SERIAL

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP24,.4

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    240

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    2.65 mm

  • Supply Current-Max:

    22.3 mA

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Tin/Lead (Sn85Pb15)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Width:

    7.5 mm

AD7730BR Frequently Asked Questions (FAQs)

  • The AD7730BR is a high-precision ADC, and its performance can be affected by the PCB layout and component placement. It is recommended to follow a star-grounding scheme, keep the analog and digital grounds separate, and place the ADC close to the analog signal sources. Additionally, decoupling capacitors should be placed close to the power pins, and the digital lines should be kept away from the analog lines.
  • The AD7730BR has an internal calibration mechanism that can be initiated through the CAL pin. The calibration process involves shorting the CAL pin to the digital ground, and then releasing it. The ADC will then perform a self-calibration sequence. Additionally, the user can also perform an external calibration by applying a known voltage to the input pins and adjusting the offset and gain registers accordingly.
  • The maximum sampling rate of the AD7730BR is 15.4 kHz. However, the actual sampling rate may be limited by the settling time of the input signal, the clock frequency, and the conversion mode. It is recommended to consult the datasheet and application notes for more information on the sampling rate and conversion modes.
  • Yes, the AD7730BR can be used with an external reference voltage. The external reference voltage should be connected to the REFIN pin, and the internal reference voltage should be disabled by setting the REFSEL bit in the Mode Register to 1. The external reference voltage should be within the specified range of 2.5 V to 5.5 V.
  • Noise and interference can be handled by using proper shielding, grounding, and filtering techniques. The AD7730BR has a high-impedance analog input, which makes it susceptible to noise and interference. It is recommended to use a low-pass filter or a band-pass filter to filter out the noise and interference. Additionally, the ADC can be operated in a differential mode to reduce the effects of common-mode noise.

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AD7730BR 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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