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OP491GSZ - Analog Devices

Description: OP491GSZ, Quad Operational Amplifier 3MHz Rail-Rail, 3 V, 5 V, 9 V, 14-Pin SOIC

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OP491GSZ - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - R-14 (SOIC)
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OP491GSZ Details

  • Manufacturer Part Number:

    OP491GSZ

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Package Description:

    ROHS COMPLIANT, MS-012AB, SOIC-14

  • Pin Count:

    14

  • Manufacturer Package Code:

    R-14

  • Country Of Origin:

    Taiwan

  • 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):

    0.095 µA

  • Bias Current-Max (IIB) @25C:

    0.065 µA

  • Common-mode Reject Ratio-Min:

    65 dB

  • Common-mode Reject Ratio-Nom:

    97 dB

  • Frequency Compensation:

    YES

  • Input Offset Voltage-Max:

    1250 µV

  • JESD-30 Code:

    R-PDSO-G14

  • JESD-609 Code:

    e3

  • Length:

    8.65 mm

  • Low-Bias:

    NO

  • Low-Offset:

    NO

  • Micropower:

    YES

  • Moisture Sensitivity Level:

    1

  • Neg Supply Voltage Limit-Max:

    -8 V

  • Neg Supply Voltage-Nom (Vsup):

    -5 V

  • Number of Functions:

    4

  • Number of Terminals:

    14

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP14,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Power:

    NO

  • Programmable Power:

    NO

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Slew Rate-Nom:

    0.5 V/us

  • Supply Current-Max:

    2.2 mA

  • Supply Voltage Limit-Max:

    8 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    BICMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Unity Gain BW-Nom:

    3000

  • Voltage Gain-Min:

    25000

  • Wideband:

    NO

  • Width:

    3.9 mm

OP491GSZ Frequently Asked Questions (FAQs)

  • The maximum power dissipation of the OP491GSZ is 670mW, which is calculated based on the maximum junction temperature (150°C) and the thermal resistance (125°C/W) of the package.
  • To ensure stability, it's essential to follow proper PCB layout practices, minimize parasitic capacitance, and use a compensation capacitor (if necessary) to prevent oscillations. Additionally, ensure that the feedback loop has a sufficient phase margin (>45°) to prevent oscillations.
  • The recommended input impedance for the OP491GSZ is ≥1kΩ to ensure optimal performance and minimize input bias current effects. However, the input impedance can be lower if the source impedance is matched to the input impedance of the op-amp.
  • While the OP491GSZ can be used as a comparator, it's not the most suitable choice due to its relatively slow slew rate (2.5V/μs) and limited output current (±20mA). A dedicated comparator like the AD8561 or AD9671 would be a better choice for most applications.
  • To protect the OP491GSZ from overvoltage conditions, use voltage clamping diodes (e.g., 1N4148) or a voltage limiter circuit to prevent the input voltage from exceeding the maximum rating (±15V). Additionally, ensure that the power supply voltage is within the recommended range (±2.5V to ±15V).

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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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