NJM4585 Series
Low Noise, Bipolar Input Dual Audio Operational Amplifier

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  • Description

    The NJM4585 is a low noise bipolar input dual audio operational amplifier featuring 3.5nV/√Hz at 1 kHz. The NJM4585 features Low distortion, high slew rate, wide bandwidth and high open-loop gain. In addition, unity-gain stable allows voltage-follower operation. These features make NJM4585 ideal for audio pre amplifier, microphone amplifier, line amplifier and other audio applications. NJM4585 operate over a wide temperature range of -40°C to +125°C, making this IC ideal for use in industrial measurement instruments. The NJM4585 is available in the 8-pin DMP8 packages.

    Applications


    • Professional Audio sets
    • Audio pre/microphone amplifiers
    • Analog/Digital mixer
    • AV Receiver
    • Car Audio
    • Industrial Measurement Instruments

  • Spec
    Consumer
    No.of Circuit 2 ch.
    Power Supply Dual
    Supply Voltage ±4 V to ±18 V ( 8 V to 36 V)
    Supply Current (Per ch.) Typ. 2.5 mA to max. 4 mA
    Input Offset Voltage Typ. 0.3 mV to max. 3 mV
    Slew Rate Typ. 6.8 V/μsec
    Input Bias Current Typ. 260 nA to max. 1000 nA
    Input Offset Current Typ. 5 nA to max. 200 nA
    GBW Typ. 19 MHz
    ft Typ. 7.5 MHz
    Noise Voltage (VNI) Typ. 0.5 μVrms
    Noise Voltage (en) Typ. 3.5 nV/√Hz
    Wide Operating Temperature -40°C to 125°C
    Junction Temp. 150°C
    Min Stable Gain 1 V/V
    Package DMP8
    Note(1) Low Distortion (0.001%)
    Note(2) Open-Loop Voltage Gain (120dB)
  • Technical
    Documents
  • Quality &
    Packages
    • Refer to the datasheets for the details on the product.
    • The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
    • Please contact us or our distributors for unpublished reliability information.

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Functional Description

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Category:Operational Amplifiers

No.of Circuit 2
Power Supply Dual
Supply Voltage
(+8V=8,
±8V=16)
min(V)
8
Supply Voltage
(+8V=8,
±8V=16)
max(V)
36
Supply Current
(Per ch.)
typ(mA)
2.5
Input
Offset
Voltage
max(mV)
3
Slew
Rate
typ(V/µsec)
6.8
GBW
typ(MHz)
19
en(nV/√Hz) 3.5