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OPA657NB/250G4 - Texas Instruments

Description: High Speed Operational Amplifiers 1.6GHz Low Noise FET-Input Op Amp

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PCB Footprints
OPA657NB/250G4 - Texas Instruments PCB footprint - SOT23 (5-Pin) - SOT23 (5-Pin) - DBV0005A
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OPA657NB/250G4 - Texas Instruments  - 3D model - SOT23 (5-Pin) - DBV0005A
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OPA657NB/250G4 Details

  • Manufacturer Part Number:

    OPA657NB/250G4

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOT-23

  • Pin Count:

    5

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.33.00.01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Amplifier Type:

    OPERATIONAL AMPLIFIER

  • Architecture:

    VOLTAGE-FEEDBACK

  • Average Bias Current-Max (IIB):

    0.00125 µA

  • Bias Current-Max (IIB) @25C:

    0.00002 µA

  • Common-mode Reject Ratio-Min:

    83 dB

  • Common-mode Reject Ratio-Nom:

    89 dB

  • Frequency Compensation:

    YES (AVCL>=7)

  • Input Offset Current-Max (IIO):

    0.00001 µA

  • Input Offset Voltage-Max:

    1800 µV

  • JESD-30 Code:

    R-PDSO-G5

  • JESD-609 Code:

    e4

  • Length:

    2.9 mm

  • Low-Bias:

    YES

  • Low-Offset:

    YES

  • Micropower:

    NO

  • Moisture Sensitivity Level:

    2

  • Neg Supply Voltage Limit-Max:

    -6.5 V

  • Neg Supply Voltage-Nom (Vsup):

    -5 V

  • Number of Functions:

    1

  • Number of Terminals:

    5

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    LSSOP

  • Package Equivalence Code:

    TSOP5/6,.11,37

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, LOW PROFILE, SHRINK PITCH

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Power:

    NO

  • Programmable Power:

    NO

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.45 mm

  • Slew Rate-Nom:

    700 V/us

  • Subcategory:

    Operational Amplifier

  • Supply Current-Max:

    16 mA

  • Supply Voltage Limit-Max:

    6.5 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Temperature Grade:

    INDUSTRIAL

  • 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:

    1600000

  • Voltage Gain-Min:

    1410

  • Wideband:

    YES

  • Width:

    1.6 mm

OPA657NB/250G4 Frequently Asked Questions (FAQs)

  • Texas Instruments recommends a layout with a symmetrical, star-grounded configuration, with the op-amp inputs and outputs routed away from noise sources and high-current paths. A dedicated analog ground plane and careful component placement can also help minimize noise and parasitic effects.
  • To prevent oscillations, ensure that the op-amp is properly compensated, and the feedback network is designed to provide sufficient phase margin. Additionally, use a low-ESR capacitor in the feedback loop, and consider adding a series resistor to the feedback path to reduce the Q of the circuit.
  • The OPA657NB/250G4 can drive capacitive loads up to 1nF, but it's recommended to limit the load capacitance to 100pF or less to ensure stability and prevent oscillations. If a larger capacitive load is required, consider adding a series resistor or using a buffer stage.
  • Use input protection diodes or a voltage clamp circuit to limit the input voltage to within the recommended range. Additionally, consider adding a series resistor to the input to limit the current and prevent damage to the op-amp.
  • The OPA657NB/250G4 has a thermal derating of 13.9mW/°C above 25°C. This means that the maximum power dissipation decreases by 13.9mW for every degree Celsius above 25°C. Ensure that the op-amp is properly heat-sinked and that the ambient temperature is within the recommended range.

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OPA657NB/250G4 Overview

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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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