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AD7902BRQZ - Analog Devices

Description: Analog Devices AD7902BRQZ, 16 bit Serial ADC, Dual Differential Input, 20-Pin QSOP

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AD7902BRQZ - Analog Devices - PCB symbol
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PCB Footprints
AD7902BRQZ - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - RQ-20 (QSOP)
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AD7902BRQZ - Analog Devices - 3D model - Small Outline Packages - RQ-20 (QSOP)
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AD7902BRQZ Details

  • Manufacturer Part Number:

    AD7902BRQZ

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    ROHS COMPLIANT, MO-137AD, QSOP-20

  • Pin Count:

    20

  • Manufacturer Package Code:

    RQ-20

  • Country Of Origin:

    Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Analog Input Voltage-Max:

    5.1 V

  • Conversion Time-Max:

    0.71 µs

  • Converter Type:

    ADC, SUCCESSIVE APPROXIMATION

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e3

  • Length:

    8.66 mm

  • Linearity Error-Max (EL):

    0.0038%

  • Moisture Sensitivity Level:

    1

  • Number of Analog In Channels:

    2

  • Number of Bits:

    16

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Bit Code:

    BINARY

  • Output Format:

    SERIAL

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SSOP

  • Package Equivalence Code:

    SSOP20,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Sample Rate:

    1 MHz

  • Sample and Hold / Track and Hold:

    TRACK

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max:

    1.6 mA

  • Supply Voltage-Nom:

    2.5 V

  • Surface Mount:

    YES

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.64 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.91 mm

AD7902BRQZ Frequently Asked Questions (FAQs)

  • The AD7902BRQZ is a high-speed, 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, use a solid ground plane, avoid routing digital signals near the ADC, and use decoupling capacitors to minimize noise.
  • To optimize the AD7902BRQZ's performance, it is essential to understand the specific requirements of your application. Consider factors such as the input signal frequency, amplitude, and noise level, as well as the desired SNR, THD, and SFDR. Adjust the ADC's gain, offset, and sampling rate accordingly, and consider using external filters or amplifiers to condition the input signal.
  • Potential sources of error in the AD7902BRQZ include thermal noise, quantization error, and nonlinearity. To mitigate these errors, use proper thermal management, ensure a stable power supply, and consider using dithering or other techniques to reduce quantization error. Additionally, calibrate the ADC regularly to compensate for any nonlinearity.
  • The AD7902BRQZ has a parallel interface that can be easily interfaced with a microcontroller or FPGA. Ensure that the interface clock frequency is within the specified range, and use a suitable interface protocol (e.g., SPI or parallel) to transfer data. Consider using a FIFO or buffer to handle data transfer and minimize data loss.
  • The AD7902BRQZ requires a single 5V power supply, and it is essential to ensure a stable power supply to maintain optimal performance. Use a high-quality voltage regulator, decouple the power supply lines, and consider using a power supply filter to minimize noise and ripple.

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AD7902BRQZ 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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