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Product Detailed Parameters
- Description：IC OPAMP JFET 4 CIRCUIT 14SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Bulk,Tube
- 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 LF347BD is a quad general-purpose JFET-input operational amplifier manufactured by Texas Instruments. It features four independent amplifiers in a single SOIC-14 surface-mount package. Key electrical specifications include a gain-bandwidth product of 3 MHz, a slew rate of 13 V/µs, and an input bias current of 50 pA. The device operates on supply voltages ranging from 3.5V to 18V with a typical supply current of 8 mA. It supports an operating temperature range from 0°C to 70°C.
Feature Summary
- JFET input stage providing low input bias current
- High-speed performance with significant gain bandwidth
- Quad configuration for multi-channel signal processing
Applications
- High-speed integrators
- Digital-to-analog converters
- Sample-and-hold circuits
Procurement Notes
Verify the specific suffix 'BD' against the official Texas Instruments datasheet to confirm the exact pinout, thermal characteristics, and RoHS compliance status associated with this marking code. Ensure the component matches the required SOIC-14 package dimensions and lead finish specifications before integration into the design.
Selection Notes
Select the LF347BD when a quad amplifier with JFET inputs is required for applications needing low input bias current and moderate speed. Compare its 3 MHz gain-bandwidth product and 13 V/µs slew rate against other quad op-amps to ensure it meets the circuit's dynamic requirements within the specified voltage and temperature ranges.
Part Context
This component belongs to the LF34x family of high-speed quad operational amplifiers. It shares architectural similarities with through-hole variants like the LF347N but utilizes a surface-mount SOIC-14 package suitable for automated assembly. The device is designed for general-purpose analog signal conditioning tasks requiring multiple channels.
Replacement Considerations
Cross-reference with LF347BN/NOPB or LF347M-NOPB for equivalent functionality in different packages. Verify pin compatibility and electrical parameter alignment before substituting.
