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Product Detailed Parameters
- Description：IC OPAMP JFET 4 CIRCUIT 14SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Amplifier Type：J-FET
- Number of Circuits：4
- Output Type：-
- Slew Rate：13V/µs
- Gain Bandwidth Product：3 MHz
- Current - Input Bias：50 pA
- Voltage - Input Offset：3 mV
- Current - Supply：8mA (x4 Channels)
- Current - Output / Channel：31 mA
- Voltage - Supply Span (Min)：7 V
- Voltage - Supply Span (Max)：36 V
- Operating Temperature：0°C ~ 70°C (TA)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：14-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：14-SOIC
- -3db Bandwidth：-
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Overview
The LF347BDR is a quad wideband JFET input operational amplifier manufactured by Texas Instruments. It features four independent amplifiers in a single package, offering high slew rate and low input bias current typical of JFET technology. The device operates within a supply voltage range of 6V to 36V (single) or ±3V to ±18V (dual). Key electrical characteristics include a gain-bandwidth product of 4 MHz, a slew rate of 13 V/µs, and an input offset voltage of 5 mV. It is housed in a 14-SOIC surface-mount package.
Feature Summary
- Quad configuration providing four independent high-speed amplifiers
- JFET input stage ensuring low input bias current
- Wide bandwidth suitable for signal processing applications
Applications
- Audio preamplifiers
- Video buffering
- Instrumentation circuits
Procurement Notes
Verify the specific datasheet revision and manufacturer documentation for the LF347BDR part number to ensure alignment with design requirements. Confirm that the SOIC-14 package dimensions and thermal characteristics match the target PCB layout. Cross-reference official specifications for operating temperature ranges and electrical limits before finalizing component selection.
Selection Notes
Select this component when a quad amplifier configuration with JFET inputs is required for low noise and high impedance applications. Consider the 4 MHz gain-bandwidth product and 13 V/µs slew rate for medium-speed signal conditioning tasks. Ensure the 14-SOIC package fits the available board space and manufacturing capabilities.
Part Context
This component belongs to the LF347 family of wideband quad operational amplifiers from Texas Instruments. It shares functional similarities with other members like the LF347N but differs in packaging and specific electrical tolerances. The 'B' suffix typically denotes a specific grade or variant within the series, while 'DR' indicates the tape-and-reel surface mount packaging format.
Replacement Considerations
Compatible substitutes include the LF347BN/NOPB and LF347M-NOPB from Texas Instruments, which offer similar quad JFET op-amp functionality. Other manufacturers may provide equivalent parts, but pinout and electrical parameter verification is essential.
