Why Engineers Choose the LSK389 for High-Precision Analog Design

At Linear Integrated Systems, we know that performance, reliability, and precision are non-negotiable when it comes to analog front-end design. That’s why we developed the LSK389, a monolithic dual JFET that offers best-in-class low noise, tight gain matching, and outstanding thermal stability.

What Makes the LSK389 Unique?

The LSK389 is built on a single piece of silicon, giving it superior symmetry and performance consistency over temperature. This eliminates the mismatch and drift often seen with discrete JFET pairs, making it a go-to solution in audio, medical, instrumentation, and defense applications.

Key Performance Advantages:

• Ultra-Low Noise: Ideal for low-level signal amplification in sensitive analog circuits.

• Precision Matching: Designed for applications requiring tight differential performance.

• Thermal Stability: Minimal drift ensures long-term reliability across wide temperature ranges.

Whether you're working on high-end audio preamps, precision medical instrumentation, or low-drift sensor interfaces, the LSK389 offers the performance edge you need.

Want to See the LSK389 in Action?

We're offering free samples to qualified engineers who want to evaluate the LSK389 in their designs.

👉 Request Your Sample Here

About Linear Integrated Systems

With over 35 years of semiconductor innovation, Linear Systems designs and manufactures high-performance discrete components with a focus on JFETs, bipolar transistors, DMOS switches, and more. Learn more at www.linearsystems.com.