NJU77554 Series
1.7MHz, 50µA/ch, Excellent EMI Immunity, Rail-to-Rail Input/Output, Operational Amplifier

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  • Description

    The NJU77550/NJU77551/NJU77552/NJU77554 are single, dual and quad rail-to-rail input and output single supply OpAmp, featuring low supply current of 50µA typical per amplifier, wide gain bandwidth product of 1.7MHz and a slew rate of 0.8V/µs. Furthermore, operating voltage from 1.8V single supply can contribute to energy saving design, it is most suitable for battery equipment required low power. Low input bias current makes NJU7755x series suitable for photodiode amplifiers, piezoelectric sensors, smoke detector and other applications with high-impedance applications. A rail-to-rail input and output allows the device to be used in wide variety of applications, such as audio amplifier, high-side current sensing, active filter, buffering and others. And also, High EMI immunity that can reduced malfunctions caused by RF-noises from mobile phones and other electronic devices, and input tolerant that allows the input voltage (Recommended: V-+5.5V) that exceed positive supply voltage is ideal for robust industrial applications. The NJU7755x series guarantees the specifications from 1.8V to 5.5V single supply, making it ideal for low voltage applications. In addition, the operating temperature is expanded to -55°C to 125°C, which can be used in harsh environments with large temperature changes. The NJU77550/NJU77551 is available in 5-pin SC-88A and SOT-23-5 package. The NJU77552 is available in 8-pin SOP8, MSOP (TVSP): meet JEDEC MO-187-DA / thin type package and DFN that is thin and 2mm square small package. The NJU77554 is available in SSOP14 package.


    • Battery-Powered Equipment
      - Audio, Healthcare, Security, etc.
    • Gas/Smoke Sensors
    • Smart Meter
    • Sensor Interface
    • Active Filters
    • Photodiode Amplifier

  • Spec
    No.of Circuit 4 ch.
    Power Supply Single
    Supply Voltage 1.8 V to 5.5 V
    Supply Current (Per ch.) Typ. 0.05 mA to max. 0.07 mA
    Input Offset Voltage Typ. 1 mV to max. 5 mV
    Slew Rate Typ. 0.8 V/μsec
    Input Bias Current Typ. 0.001 nA to max.- nA
    Input Offset Current Typ. 0.001 nA to max.- nA
    GBW Typ. 1.7 MHz
    Noise Voltage (en) Typ. 24 nV/√Hz
    Input Offset Drift Typ. 1 μV/℃
    Wide Operating Temperature -55°C to 125°C
    Junction Temp. 150°C
    Min Stable Gain 1 V/V
    Package SSOP14
    Note(1) High Efficiency (- GBW 1.7MHz- Supply Current 50µA/ch)
    Note(2) Integrated EMI filter (EMIRR=75dB @f=900MHz)
  • Quality &
    • Refer to the datasheets for the details on the product.
    • The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.

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Functional Description

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Category:Operational Amplifiers

No.of Circuit 4
Power Supply Single
Supply Voltage
Supply Voltage
Supply Current
(Per ch.)
en(nV/√Hz) 24