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LT1991IMS#PBF - Analog Devices

Description: LINEAR TECHNOLOGY - LT1991IMS#PBF - Differential Amplifier, Selectable Gain, 1 Amplifiers, 50 µV, 560 kHz, -40 °C, 85 °C

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LT1991IMS#PBF - Analog Devices - PCB symbol
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LT1991IMS#PBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - MS Package 10-Lead Plastic MSOP_1-ren1
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LT1991IMS#PBF - Analog Devices - 3D model - Small Outline Packages - MS Package 10-Lead Plastic MSOP_1-ren1
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LT1991IMS#PBF Details

  • Manufacturer Part Number:

    LT1991IMS#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    LEAD FREE, PLASTIC, MSOP-10

  • Pin Count:

    10

  • Manufacturer Package Code:

    05-08-1661

  • Country Of Origin:

    Malaysia

  • 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):

    0.0075 µA

  • Bias Current-Max (IIB) @25C:

    0.005 µA

  • Common-mode Reject Ratio-Min:

    60 dB

  • Common-mode Reject Ratio-Nom:

    70 dB

  • Frequency Compensation:

    YES

  • Input Offset Voltage-Max:

    200 µV

  • JESD-30 Code:

    S-PDSO-G10

  • JESD-609 Code:

    e3

  • Length:

    3 mm

  • Low-Bias:

    NO

  • Low-Offset:

    YES

  • Micropower:

    YES

  • Moisture Sensitivity Level:

    1

  • Neg Supply Voltage Limit-Max:

    -20 V

  • Neg Supply Voltage-Nom (Vsup):

    -15 V

  • Number of Functions:

    1

  • Number of Terminals:

    10

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Power:

    NO

  • Programmable Power:

    YES

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.1 mm

  • Slew Rate-Min:

    0.08 V/us

  • Slew Rate-Nom:

    0.12 V/us

  • Supply Current-Max:

    0.021 mA

  • Supply Voltage Limit-Max:

    20 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

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

    30

  • Unity Gain BW-Nom:

    560

  • Wideband:

    YES

  • Width:

    3 mm

LT1991IMS#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LT1991 involves keeping the input and output traces short and away from each other, using a solid ground plane, and placing the input and output capacitors close to the device. A 4-layer PCB with a dedicated ground plane is recommended.
  • To ensure stability in high-gain configurations, it's essential to follow the recommended compensation network and component values, and to minimize parasitic capacitance and inductance in the input and feedback paths. Additionally, using a low-ESR output capacitor and a high-quality input capacitor can help improve stability.
  • The maximum power dissipation of the LT1991 is dependent on the package type and the ambient temperature. The maximum power dissipation can be calculated using the formula: Pd = (VIN - VOUT) x IOUT + VIN x IGND, where Pd is the power dissipation, VIN is the input voltage, VOUT is the output voltage, IOUT is the output current, and IGND is the ground current.
  • Yes, the LT1991 can be used as a voltage regulator, but it's essential to ensure that the output voltage is within the recommended range (1.2V to 12V) and that the output current is within the maximum rating (1A). Additionally, the input voltage must be at least 2V higher than the output voltage, and the device must be properly compensated to ensure stability.
  • To protect the LT1991 from overvoltage and undervoltage conditions, it's recommended to use a voltage supervisor or a reset IC to monitor the input voltage and shut down the device if it exceeds the recommended range. Additionally, using a TVS diode or a zener diode can help protect the device from voltage transients and spikes.

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LT1991IMS#PBF 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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