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Product Detailed Parameters
- Description：IC OPAMP JFET 4 CIRCUIT 14SOIC
- 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：5 mV
- Current - Supply：7.2mA (x4 Channels)
- Current - Output / Channel：-
- Voltage - Supply Span (Min)：10 V
- Voltage - Supply Span (Max)：36 V
- Operating Temperature：0°C ~ 70°C
- 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 LF347M is a quad general-purpose operational amplifier manufactured by Texas Instruments, housed in a SOIC-Narrow-14 surface-mount package. It features JFET inputs providing low input bias current and noise. Key electrical parameters include a gain-bandwidth product of 4 MHz, a slew rate of 13 V/us, and an input offset voltage of 5 mV. The device operates on supply voltages ranging from 8 V to 36 V single supply or ±4 V to ±18 V dual supply. It draws 1.8 mA of operating supply current and supports a common mode rejection ratio between 70 dB and 100 dB.
Feature Summary
- Quad configuration with high-speed JFET input stage for low noise and bias current
- Wide bandwidth and fast slew rate suitable for demanding signal processing tasks
- Operates within a wide single or dual power supply voltage range
Applications
- High-speed integrator circuits
- Sample-and-hold applications
- Data acquisition systems
Procurement Notes
Verify the specific suffix 'M' corresponds to the SOIC-14 package variant when sourcing. Confirm RoHS compliance status as indicated by NOPB suffixes if required. Check manufacturer datasheets for exact pinout and thermal characteristics relevant to surface-mount assembly processes.
Selection Notes
Select this component for designs requiring multiple amplifiers in a compact surface-mount footprint. Ensure the 4 MHz bandwidth meets system frequency requirements. Verify that the 13 V/us slew rate is sufficient for the intended signal amplitude and speed. Consider the 5 mV input offset voltage for precision DC applications.
Part Context
This part belongs to the LF347 family of quad JFET-input operational amplifiers. The 'M' designation specifically identifies the SOIC-Narrow-14 surface-mount package option, distinguishing it from through-hole DIP variants like the LF347N. It shares core electrical specifications with other members of the series while offering different physical mounting characteristics.
Replacement Considerations
Compatible substitutes include the LF347BN/NOPB (DIP-14) and LF347BD (SOIC-14). Verify package compatibility and pin alignment before substitution. Electrical parameters such as gain-bandwidth and slew rate should be cross-referenced to ensure functional equivalence.
