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Product Detailed Parameters
- Description：JFET 2N-CH 25V 8SOIC
- Series：LS5912C
- Mfr：Linear Integrated Systems, Inc.
- Package：Tube
- FET Type：2 N-Channel (Dual)
- Voltage - Breakdown (V(BR)GSS)：25 V
- Drain to Source Voltage (Vdss)：-
- Current - Drain (Idss) @ Vds (Vgs=0)：7 mA @ 10 V
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：1 V @ 1 nA
- Input Capacitance (Ciss) (Max) @ Vds：5pF @ 10V
- Resistance - RDS(On)：-
- Power - Max：500 mW
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The LS5912C is a monolithic dual N-channel JFET amplifier designed as an improved replacement for legacy discrete devices. It features low noise performance with an equivalent input noise voltage of approximately 4nV/√Hz at 10kHz and high transconductance (gfs) ranging from 4000µS to 10000µS at 1kHz. The device operates with a gate-to-source breakdown voltage of -25V and supports continuous power dissipation up to 500mW. It offers tight matching characteristics, including differential gate-to-source cutoff voltage variations within 10-40mV and common mode rejection ratios of 85dB.
Feature Summary
- Low noise architecture optimized for precision analog signal processing
- High transconductance capability supporting wideband amplification
- Tight electrical matching between dual channels for balanced operation
Applications
- Precision instrumentation amplifiers
- Low-noise audio preamplifiers
- Balanced input stages in measurement equipment
Procurement Notes
Verify the specific package variant against the datasheet pinout diagrams. The LS5912C designation corresponds to the SOIC-A or SOIC-B pin configurations depending on the manufacturer's revision. Confirm that the ordering suffix matches the required lead frame and tape-and-reel specifications if applicable. Ensure compatibility with existing PCB footprints before finalizing procurement orders.
Selection Notes
Select this component when replacing older Siliconix or Fairchild JFETs requiring tighter matching and lower noise profiles. Consider the LS5912C for applications demanding high common-mode rejection and stable transconductance over temperature. Evaluate thermal derating requirements above 25°C to ensure the 500mW limit is not exceeded during continuous operation.
Part Context
Linear Integrated Systems manufactures the LS5912C as part of a family including the LS5911 and LS5912. These devices are engineered to provide superior performance compared to standard discrete JFET pairs. The company leverages expertise from historical semiconductor firms to deliver high-quality monolithic dual JFETs for critical analog applications.
Replacement Considerations
This component serves as an improved replacement for the 2N5911 and 2N5912 discrete transistors. Verify pinout compatibility when transitioning from discrete components to this integrated solution.
