LSK389 JFET Datasheet

 Product Overview

The LSK389 is the industry’s lowest noise Dual NChannel JFET, 100% tested, guaranteed to meet 1/f and broadband noise specifications, while eliminating burst (RTN or popcorn) noise entirely. The LSK389 Series, Monolithic Dual N-Channel JFETs were specifically designed to provide users a better performing, less time consuming and cheaper solution for obtaining tighter IDSS matching, and better thermal tracking, than matching individual JFETs.

 


This blog will introduce LSK389 systematically from its features, pinout to its specifications, applications, also including LSK389 datasheet and so much more.

 

LSK389 Features

• Ultra Low Noise: en = 1.3nV/√Hz (typ), f = 1.0kHz and NBW = 1.0Hz

• Ultra Low Noise: 1.5nV/√Hz (typ), f = 10Hz and NBW = 1.0Hz

• Tight Matching: IVGS1-2I = 15mV max

• High Breakdown Voltage: BVGSS = 40V max

• High Gain: Gfs = 20mS (typ)

• Low Capacitance: 25pF (typ)

• Improved Second Source Replacement for 2SK389

 

LSK389 Pinout

The following figure is the diagram of LSK389 pinout.

 


LSK389 Benefits

• Improved System Noise Performance

• Unique Monolithic Dual Design Construction of Interleaving Both JFETs on the Same Piece of Silicon

• Excellent Matching and Thermal Tracking

• Great for Maximizing Battery Operated Applications by Providing a Wide Output Swing

• A High Signal to Noise Ratio as a Result of the LSK389's Low and Tightly Matched Gate Threshold Voltages

 

LSK389 Applications

• Audio Amplifiers and Preamps

• Discrete Low-Noise Operational Amplifiers

• Battery-Operated Audio Preamps

• Audio Mixer Consoles

• Acoustic Sensors

• Sonic Imaging

• Instrumentation Amplifiers

• Microphones

• Sonobouys

• Hydrophones

• Chemical and Radiation Detectors


If you want to know more about LSK389, you can read its datasheet.

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