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LT1991ACMS#PBF - Analog Devices

Description: Linear Technology LT1991ACMS#PBF, Programmable Gain Amplifier, Rail to Rail Output 60dB, 10-Pin MSOP

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LT1991ACMS#PBF - Analog Devices - PCB symbol
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PCB Footprints
LT1991ACMS#PBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - MS Package 10-Lead Plastic MSOP (Reference LTC DWG # 05-08-1661 Rev F)
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3D Models
LT1991ACMS#PBF - Analog Devices - 3D model - Small Outline Packages - MS Package 10-Lead Plastic MSOP (Reference LTC DWG # 05-08-1661 Rev F)
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LT1991ACMS#PBF Details

  • Manufacturer Part Number:

    LT1991ACMS#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:

    80 dB

  • Common-mode Reject Ratio-Nom:

    100 dB

  • Frequency Compensation:

    YES

  • Input Offset Voltage-Max:

    160 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

LT1991ACMS#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 layout. Additionally, consider adding a small capacitor (e.g., 10pF) between the output and the inverting input to improve stability.
  • The maximum power dissipation of the LT1991 is dependent on the package type and ambient temperature. For the MSOP package, the maximum power dissipation is approximately 1.4W. To calculate power dissipation, use the formula: Pd = (Vcc x Icc) + (Vout x Iout), where Vcc is the supply voltage, Icc is the quiescent current, Vout is the output voltage, and Iout is the output current.
  • Yes, the LT1991 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 input signal, and to consider the output impedance and capacitive loading to maintain stability. Additionally, the device's output current capability and power dissipation should be considered.
  • To protect the LT1991 from overvoltage and ESD damage, use a voltage clamp or a transient voltage suppressor (TVS) diode at the input, and consider adding a series resistor to limit the input current. Additionally, follow proper ESD handling and storage procedures, and use an ESD-protected workstation and tools.

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LT1991ACMS#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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