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ADA4891-3ARUZ-RL - Analog Devices

Description: Low Cost CMOS, High Speed, Rail-to-Rail Amplifier (Triple)

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ADA4891-3ARUZ-RL - Analog Devices PCB footprint - Other - Other - SOP65P640X120-14N
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ADA4891-3ARUZ-RL - Analog Devices - 3D model - Other - SOP65P640X120-14N
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ADA4891-3ARUZ-RL Details

  • Manufacturer Part Number:

    ADA4891-3ARUZ-RL

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TSSOP

  • Package Description:

    ROHS COMPLIANT, MO-153AB1, TSSOP-14

  • Pin Count:

    14

  • Manufacturer Package Code:

    RU-14

  • Country Of Origin:

    Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.33.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Amplifier Type:

    OPERATIONAL AMPLIFIER

  • Architecture:

    VOLTAGE-FEEDBACK

  • Average Bias Current-Max (IIB):

    0.00005 µA

  • Bias Current-Max (IIB) @25C:

    0.00005 µA

  • Common-mode Reject Ratio-Nom:

    87 dB

  • Frequency Compensation:

    YES

  • Input Offset Voltage-Max:

    10000 µV

  • JESD-30 Code:

    R-PDSO-G14

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Low-Bias:

    YES

  • Low-Offset:

    NO

  • Micropower:

    NO

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    3

  • Number of Terminals:

    14

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP14,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Power:

    NO

  • Programmable Power:

    NO

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.2 mm

  • Slew Rate-Nom:

    140 V/us

  • Supply Voltage Limit-Max:

    6 V

  • Supply Voltage-Nom (Vsup):

    3 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Unity Gain BW-Nom:

    240000

  • Voltage Gain-Min:

    3980

  • Wideband:

    YES

  • Width:

    4.4 mm

ADA4891-3ARUZ-RL Frequently Asked Questions (FAQs)

  • A good PCB layout for the ADA4891-3ARUZ-RL involves keeping the input and output traces short and away from each other, using a solid ground plane, and placing decoupling capacitors close to the power pins. Additionally, it's recommended to use a symmetrical layout to minimize thermal gradients and to avoid routing high-frequency signals near the op-amp.
  • The output capacitor should be chosen based on the desired closed-loop bandwidth and stability. A general rule of thumb is to use a capacitor with a value between 10nF to 100nF. A larger capacitor value can improve stability but may reduce the bandwidth. It's also important to consider the capacitor's ESR (Equivalent Series Resistance) and ESL (Equivalent Series Inductance) when selecting the output capacitor.
  • The maximum power dissipation of the ADA4891-3ARUZ-RL is dependent on the ambient temperature and the package type. For the SOIC package, the maximum power dissipation is approximately 670mW at 25°C. To calculate the power dissipation, you need to consider the supply voltage, output current, and quiescent current. The power dissipation can be calculated using the formula: Pd = (Vcc x Icc) + (Vout x Iout).
  • Yes, the ADA4891-3ARUZ-RL can be used as a unity-gain buffer. However, it's essential to ensure that the input impedance is high enough to avoid loading the source, and the output impedance is low enough to drive the load. Additionally, the op-amp's bandwidth and slew rate should be sufficient for the desired frequency range. It's also important to consider the op-amp's noise and distortion performance in this configuration.
  • To troubleshoot oscillations or instability issues with the ADA4891-3ARUZ-RL, start by checking the PCB layout and ensuring that it follows good layout practices. Verify that the power supply is clean and well-regulated, and that the decoupling capacitors are properly placed. Check the input and output signals for any signs of ringing or oscillation, and ensure that the op-amp is not being overdriven. If the issue persists, try adding a small capacitor (e.g., 10nF) in parallel with the feedback resistor to improve stability.

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ADA4891-3ARUZ-RL Overview

Use the download button to access the ADA4891-3ARUZ-RL schematic symbol, PCB footprint, and 3D model.
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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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