Op-Amp - LF347, Quad, Wide Bandwidth, 14-Pin DIP

Op-Amp - LF347, Quad, Wide Bandwidth, 14-Pin DIP

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LF347 quad op amp in a 14-pin DIP package. The LF347 is a low cost, high speed quad JFET input operational amplifier with an internally trimmed input offset voltage ( BI-FET II™ technology). The device requires a low supply current and yet maintains a large gain bandwidth product and a fast slew rate. In addition, well matched high voltage JFET input devices provide very low input bias and offset currents. The LF347 is pin compatible with the standard LM348. This feature allows designers to immediately upgrade the overall performance of existing LF348 and LM324 designs.

The LF347 may be used in applications such as high speed integrators, fast D/A converters, sample-and-hold circuits and many other circuits requiring low input offset voltage, low input bias current, high input impedance, high slew rate and wide bandwidth. The device has low noise and offset voltage drift.


  • Internally Trimmed Offset Voltage: 10 mV max
  • Low Input Bias Current: 50 pA
  • Low Input Noise Current: 0.01 pA/√Hz
  • Wide Gain Bandwidth: 4 MHz
  • High Slew Rate: 13 V/μs
  • Low Supply Current: 7.2 mA
  • High Input Impedance:1012Ω
Item ID:
Product Measurements by Type
Max. Differential Input Voltage±30V
Max. ESD Tolerance900V
Max. Input Bias Current200 pA
Max. Input Offset Current100 pA
Max. Input Offset Voltage10mV
Max. Input Voltage Range±15V
Max. Lead Temperature (Soldering, 10 sec.)260°C
Max. Output Short Circuit DurationContinuous
Max.Power Dissipation1000 mW
Max. Storage Temperature Range−65°C≤TA≤150°C
Max. Supply Current11 mA
Max. Supply Voltage±18V
Max. Tj max150°C
Min. Common-Mode Rejection Ratio70 dB
Min. Gain-Bandwidth Product2.2 MHz
Min. Input Common-Mode Voltage Range±11 V
Min. Large Signal Voltage Gain25 V/mV
Min. Output Voltage Swing±12 V
Min. Slew Rate8 V/μs
Min. Supply Current7.2 mA
Min. Supply Voltage Rejection Ratio70 dB
Typ. Amplifier to Amplifier Coupling-120 dB
Typ. Average TC of Input Offset Voltage10μV/°C
Typ. Common-Mode Rejection Ratio100 dB
Typ. Equivalent Input Noise Current0.01 pA / √Hz
Typ. Equivalent Input Noise Voltage20 nV / √Hz
Typ. Gain-Bandwidth Product4 MHz
Typ. Input Bias Current50 pA
Typ. Input Common-Mode Voltage Range±15 V
Typ. Input Offset Current25 pA
Typ. Input Offset Voltage5mV
Typ. Input Resistance1,000,000 MΩ
Typ. Large Signal Voltage Gain100 V/mV
Typ. Output Voltage Swing±13.5 V
Typ. Slew Rate13 V/μs
Typ. Supply Voltage Rejection Ratio100 dB
Typ. Total Harmonic Distortion<0.02 %
Packaging Information
Packaging Dimensions0.712 in. × 0.361 in. × 0.28 in.
Weight (Packaging)0.003 lbs.
PDF: DatasheetAll Models

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PDF: Datasheet Datasheet1.84 MB

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