NJM2749 Series
Low Offset, Low Drift Dual JFET Input Operational Amplifier

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  • Description

    The NJM2749 is a Precision dual JFET input operational amplifier which includes low input offset voltage: 0.8mV (typ) / 2.5mV (max) and 6µV/°C typical offset drift.The NJM2749A is guaranteed 20µV/°C maximum offset drift to perform a 100% tested.The NJM2749/2749A have the following features: low bias current of 50pA (typ), high slew rate of 13V/µs (typ).These features are suitable for signal processing amplifiers of instrumentation,measurement and industrial applications such as sensor amplifier, current sensing and sample-and-hold circuit.

  • Spec
    Consumer
    No.of Circuit 2 ch.
    Power Supply Dual
    Supply Voltage ±6 V to ±16 V ( 12 V to 32 V)
    Supply Current (Per ch.) Typ. 1.9 mA to max. 2.8 mA
    Input Offset Voltage Typ. 0.8 mV to max. 2.5 mV
    Slew Rate Typ. 14 V/μsec
    Input Bias Current Typ. 0.05 nA to max. 0.2 nA
    Input Offset Current Typ. 0.025 nA to max. 0.1 nA
    GBW Typ. 2.2 MHz
    ft Typ. 2 MHz
    Noise Voltage (VNI) Typ. 2.5 μVrms
    Noise Voltage (en) Typ. 20 nV/√Hz
    Input Offset Drift Typ. 6 μV/℃
    Wide Operating Temperature -40°C to 85°C
    Junction Temp. 125°C
    Min Stable Gain 1 V/V
    Package DMP8
    SOP8 JEDEC 150mil
    Note(1) Input Offset Voltage Drift (ΔVIO/ΔT= 6µV/°C typ.)
    Note(2) Voltage Gain (Av=100dB typ.)
  • 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    • Please contact us or our distributors for unpublished reliability information.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)
12
Supply Voltage
(+8V=8,
±8V=16)
max(V)
32
Supply Current
(Per ch.)
typ(mA)
1.9
Input
Offset
Voltage
max(mV)
2.5
Slew
Rate
typ(V/µsec)
14
GBW
typ(MHz)
2.2
en(nV/√Hz) 20