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LT1994MPDD#PBF - Analog Devices

Description: IC OPAMP DIFF 1 CIRCUIT 8DFN

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LT1994MPDD#PBF - Analog Devices PCB footprint - Small Outline No-lead - Small Outline No-lead - DD PACKAGE
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LT1994MPDD#PBF - Analog Devices  - 3D model - Small Outline No-lead - DD PACKAGE
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LT1994MPDD#PBF Details

  • Manufacturer Part Number:

    LT1994MPDD#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    3 X 3 MM, LED FREE, PLASTIC, MO-229-WEED-1, DFN-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    05-08-1698

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Amplifier Type:

    OPERATIONAL AMPLIFIER

  • Architecture:

    VOLTAGE-FEEDBACK

  • Average Bias Current-Max (IIB):

    3 µA

  • Bias Current-Max (IIB) @25C:

    -45 µA

  • Common-mode Reject Ratio-Min:

    55 dB

  • Common-mode Reject Ratio-Nom:

    85 dB

  • Frequency Compensation:

    YES

  • Input Offset Voltage-Max:

    3000 µV

  • JESD-30 Code:

    S-PDSO-N8

  • JESD-609 Code:

    e3

  • Length:

    3 mm

  • Low-Bias:

    NO

  • Low-Offset:

    NO

  • Micropower:

    NO

  • Moisture Sensitivity Level:

    1

  • Neg Supply Voltage Limit-Max:

    -6.3 V

  • Neg Supply Voltage-Nom (Vsup):

    -5 V

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -55 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVSON

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Power:

    NO

  • Programmable Power:

    NO

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    0.8 mm

  • Slew Rate-Min:

    50 V/us

  • Slew Rate-Nom:

    65 V/us

  • Supply Current-Max:

    21.5 mA

  • Supply Voltage Limit-Max:

    6.3 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Temperature Grade:

    MILITARY

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

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

    30

  • Unity Gain BW-Nom:

    70000

  • Wideband:

    NO

  • Width:

    3 mm

LT1994MPDD#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LT1994 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 proper PCB layout guidelines, use a low-ESR output capacitor, and add a compensation capacitor (e.g., 10pF to 100pF) between the output and the inverting input. Additionally, consider adding a small resistor (e.g., 10Ω to 100Ω) in series with the output to improve stability.
  • The maximum power dissipation of the LT1994 is dependent on the package type and ambient temperature. For the MPDD package, the maximum power dissipation is approximately 1.4W at 25°C. To calculate power dissipation, use the formula: Pd = (VIN - VOUT) x IOUT + VIN x IQ, where VIN is the input voltage, VOUT is the output voltage, IOUT is the output current, and IQ is the quiescent current.
  • Yes, the LT1994 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. A resistor in series with the input (e.g., 1kΩ to 10kΩ) can help improve input impedance. Additionally, consider adding a small capacitor (e.g., 10pF to 100pF) between the output and the inverting input to improve stability.
  • To protect the LT1994 from overvoltage and overcurrent conditions, consider adding a voltage clamp or a transient voltage suppressor (TVS) diode at the input. For overcurrent protection, add a current-limiting resistor in series with the output or use a current-sensing resistor with a comparator to detect overcurrent conditions.

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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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