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Product Detailed Parameters
- Description：IC OPAMP JFET 4 CIRCUIT 14MDIP
- Series：-
- Mfr：onsemi
- Package：Tube
- Amplifier Type：J-FET
- Number of Circuits：4
- Output Type：-
- Slew Rate：13V/µs
- Gain Bandwidth Product：4 MHz
- Current - Input Bias：50 pA
- Voltage - Input Offset：5 mV
- Current - Supply：7.2mA (x4 Channels)
- Current - Output / Channel：-
- Voltage - Supply Span (Min)：7 V
- Voltage - Supply Span (Max)：36 V
- Operating Temperature：0°C ~ 70°C
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Package / Case：14-DIP (0.300", 7.62mm)
- Supplier Device Package：14-MDIP
- -3db Bandwidth：-
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Overview
The LF347N is a high-speed quad JFET input operational amplifier manufactured by Fairchild Semiconductor. It features a wide gain bandwidth of 4 MHz and a high slew rate of 13 V/µs. The device operates within a supply voltage range of ±18 V and an operating temperature range of 0°C to +70°C. Key electrical characteristics include a typical input bias current of 50 pA, an input offset voltage of 5 mV, and a large signal voltage gain of 25 V/mV. The component is housed in a 14-DIP package.
Feature Summary
- High input impedance utilizing JFET input stage
- Wide gain bandwidth for high-speed applications
- Low input bias and offset currents
- Internal frequency compensation
Applications
- High-speed integrators
- Sample-and-hold circuits
- Precision analog-to-digital converters
Procurement Notes
Verify the manufacturer origin as Fairchild Semiconductor when sourcing this specific part number. Confirm the package type corresponds to the 14-DIP configuration. Ensure the operating temperature rating matches the commercial grade specification of 0°C to +70°C. Cross-reference datasheet revisions to ensure compatibility with design requirements.
Selection Notes
Select this component for designs requiring high input impedance and moderate speed. The JFET input stage minimizes loading effects on high-impedance sources. Consider the 4 MHz bandwidth limit for signal processing needs. Evaluate power dissipation constraints relative to the ambient temperature environment.
Part Context
This component belongs to the LF347 family of quad operational amplifiers. It shares architectural similarities with other JFET-input devices but offers specific performance metrics tailored for general-purpose high-speed applications. The LF347N designation specifically identifies the through-hole DIP variant.
Replacement Considerations
Check for pin-compatible alternatives such as the LF347M for surface mount requirements. Verify that substitute components maintain equivalent JFET input characteristics and bandwidth specifications.
