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Product Detailed Parameters
- Description：IC OPAMP JFET 4 CIRCUIT 14DIP
- Series：-
- Mfr：Texas Instruments
- 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：3 mV
- Current - Supply：7.2mA (x4 Channels)
- Current - Output / Channel：-
- Voltage - Supply Span (Min)：36 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-PDIP
- -3db Bandwidth：-
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Overview
The LF347BN/NOPB is a quad JFET-input operational amplifier manufactured by Texas Instruments. It features four independent high-speed amplifiers in a single package, designed for applications requiring low power consumption alongside high bandwidth and fast slew rates. The device utilizes matched high-voltage JFET inputs to achieve very low input bias and offset currents. Key electrical specifications include a gain-bandwidth product of 4 MHz, a slew rate of 13 V/µs, and an input bias current of 50 pA. It operates within a supply voltage range of 8 V to 36 V (single) or ±4 V to ±18 V (dual), with a typical operating supply current of 7.2 mA.
Feature Summary
- JFET input stage providing extremely low input bias and offset currents
- High slew rate and wide bandwidth suitable for fast signal processing
- Low power consumption relative to performance capabilities
- Quad configuration integrating four independent amplifiers
Applications
- High-speed integrators
- Sample-and-hold circuits
- Digital-to-analog converters
- Transimpedance amplifiers
Procurement Notes
Verify the specific suffix 'NOPB' indicates lead-free compliance and RoHS adherence as per Texas Instruments standards. Confirm the package type is SOIC-14 for surface mount installation. Ensure the ordering part number matches the exact pinout and thermal characteristics required for the target PCB layout. Cross-reference the manufacturer's latest datasheet revision to confirm any updates to absolute maximum ratings or recommended operating conditions before finalizing procurement.
Selection Notes
Select this component when a quad amplifier configuration is required with JFET input characteristics for minimal loading on high-impedance sources. It is appropriate for designs needing a balance between speed and power efficiency. Consider the SOIC-14 package constraints for surface mount assembly. Evaluate if the 4 MHz bandwidth and 13 V/µs slew rate meet the dynamic signal requirements of the application circuit.
Part Context
The LF347 series belongs to Texas Instruments' family of wide bandwidth JFET-input operational amplifiers. This series is engineered to provide high performance while maintaining low power dissipation. The LF347BN variant specifically denotes the commercial grade version housed in a small-outline integrated circuit package. It serves as a multi-channel solution for general-purpose analog signal conditioning tasks.
Replacement Considerations
The LF347N is a through-hole equivalent offering similar electrical performance in a different package format. The LF347BD provides the same functionality in a smaller SOIC package. Verify pin compatibility and thermal management requirements when substituting these variants.
