LSK489A SOT-23 6L ROHS

$5.38

Description：JFET 2N-CH 60V SOT23-6
Series：LSK489

SKU:fedfed52dd29 Category: JFETs Brand: Linear Integrated Systems, Inc.

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Product introduction

Product Detailed Parameters

Description：JFET 2N-CH 60V SOT23-6
Series：LSK489
Mfr：Linear Integrated Systems, Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
FET Type：2 N-Channel (Dual)
Voltage - Breakdown (V(BR)GSS)：60 V
Drain to Source Voltage (Vdss)：-
Current - Drain (Idss) @ Vds (Vgs=0)：2.5 mA @ 15 V
Current Drain (Id) - Max：-
Voltage - Cutoff (VGS off) @ Id：1.5 V @ 1 nA
Input Capacitance (Ciss) (Max) @ Vds：8pF @ 15V
Resistance - RDS(On)：-
Power - Max：500 mW
Operating Temperature：-55°C ~ 150°C (TJ)
Mounting Type：Surface Mount
Package / Case：SOT-23-6
Supplier Device Package：SOT-23-6
Grade：-
Qualification：-

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LSK489A SOT-23 6L ROHS

Overview

The LSK489A is a monolithic dual N-Channel JFET amplifier in a SOT-23 6L package. It features an input capacitance of 4pF and noise voltage of 1.8nV/√Hz at 1kHz. The device offers a common mode rejection ratio of 102dB, gate-to-source breakdown voltage of 60V, and drain saturation current ranging from 2.5mA to 8.5mA for the A grade. Maximum power dissipation is 300mW per side with a total of 500mW.

Feature Summary

Industry's lowest input capacitance for reduced intermodulation distortion
Ultra-low noise profile with minimal popcorn noise
Tight differential voltage matching and low drift over temperature
High slew rate and high common mode rejection ratio

Applications

Wideband differential amplifiers
High-speed comparators
Impedance converters
Sonobuoys and hydrophones
Acoustic sensors

Procurement Notes

Verify the specific ordering suffix against official Linear Integrated Systems documentation to confirm exact electrical limits such as IDSS ranges or noise specifications. Ensure the component matches the required SOT-23 6L surface mount configuration. Confirm RoHS compliance status directly with the manufacturer or authorized distributors prior to procurement.

Selection Notes

Select the LSK489A when extremely low input capacitance is critical to minimize intermodulation distortion in high-frequency circuits. Choose this part over higher capacitance alternatives like the LSK389 when circuit simplicity and lower production costs are prioritized alongside low-noise performance. Verify that the A-grade IDSS range meets the biasing requirements of the target application.

Part Context

The LSK489 series represents a low-noise, low-capacitance monolithic dual N-Channel JFET amplifier. It is designed for precision instrumentation and sensor applications requiring tight offset voltage matching and low drift. The device combines interleaved JFET construction on a single silicon piece for excellent thermal tracking.

Replacement Considerations

The LSK389 is pin-compatible and interchangeable in TO-71 and SOIC packages but has higher capacitance (25pF). No direct SOT-23 replacement is specified in the provided datasheet.