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OPA838IDBVT - Texas Instruments

Description: 1-mA, 300-MHz Gain Bandwidth, Voltage-Feedback Op Amp

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OPA838IDBVT - Texas Instruments PCB footprint - SOT23 (6-Pin) - SOT23 (6-Pin) - OPA838IDBVT--
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OPA838IDBVT - Texas Instruments  - 3D model - SOT23 (6-Pin) - OPA838IDBVT--
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OPA838IDBVT Details

  • Manufacturer Part Number:

    OPA838IDBVT

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.33.00.01

  • Date Of Intro:

    2017-08-19

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Amplifier Type:

    OPERATIONAL AMPLIFIER

  • Architecture:

    VOLTAGE-FEEDBACK

  • Average Bias Current-Max (IIB):

    4.4 µA

  • Bias Current-Max (IIB) @25C:

    4.4 µA

  • Common-mode Reject Ratio-Min:

    95 dB

  • Common-mode Reject Ratio-Nom:

    105 dB

  • Frequency Compensation:

    YES

  • Input Offset Current-Max (IIO):

    0.07 µA

  • Input Offset Voltage-Max:

    125 µV

  • JESD-30 Code:

    R-PDSO-G6

  • JESD-609 Code:

    e4

  • Length:

    2.9 mm

  • Low-Bias:

    NO

  • Low-Offset:

    YES

  • Micropower:

    NO

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Terminals:

    6

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    LSSOP

  • Package Equivalence Code:

    TSOP6,.11,37

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, LOW PROFILE, SHRINK PITCH

  • Packing Method:

    TR, 7 INCH

  • Peak Reflow Temperature (Cel):

    260

  • Power:

    NO

  • Programmable Power:

    NO

  • Seated Height-Max:

    1.45 mm

  • Slew Rate-Min:

    250 V/us

  • Slew Rate-Nom:

    350 V/us

  • Subcategory:

    Operational Amplifier

  • Supply Current-Max:

    1.365 mA

  • Supply Voltage Limit-Max:

    5.5 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.95 mm

  • Terminal Position:

    DUAL

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

    30

  • Unity Gain BW-Nom:

    300000

  • Voltage Gain-Min:

    1000000

  • Wideband:

    YES

  • Width:

    1.6 mm

OPA838IDBVT Frequently Asked Questions (FAQs)

  • Texas Instruments provides a recommended PCB layout in the OPA838 application note (SLVAU65). It suggests using a symmetrical layout, keeping the input and output traces short, and using a solid ground plane to minimize noise and parasitic inductance.
  • The gain resistors (Rf and Rg) should be chosen based on the desired gain and bandwidth. A higher gain requires smaller resistors, but may compromise bandwidth. TI provides a gain resistor calculator tool (OPA838 Gain Calculator) to help with the selection.
  • The OPA838IDBVT can drive up to 100 pF of capacitive load. Exceeding this limit may cause oscillations or instability. If a larger capacitive load is required, consider adding a series resistor or using a buffer stage.
  • To ensure stability, ensure that the feedback loop has a phase margin of at least 45° and a gain margin of at least 10 dB. This can be achieved by adjusting the gain resistors, adding a compensation capacitor, or using a phase-lead compensation network.
  • TI recommends using a 10 μF ceramic capacitor in parallel with a 1 μF ceramic capacitor, both connected between the power supply pins (V+ and V-) and the ground plane. This helps to filter out noise and ensure stable operation.

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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