LSK489 Series - Low Capacitance Monolithic Dual N-Channel JFET

LSK489 Series: Precision Dual JFETs

The LSK489 is the industry’s lowest input capacitance and low-noise monolithic dual N-Channel JFET. Low input capacitance substantially reduces intermodulation distortion. In addition, these dual JFETs feature tight offset voltage and low drift over temperature range, and are targeted for use in a wide range of precision instrumentation and sensor applications. This part is available in the TO-71 6L, SOIC 8L, SOT-23 6L and DFN 8L package, as well as in die form.

Advanced screening options are available for our diverse product lineup, featuring JFETS, Bipolar transistors, MOSFETs, current regulators, and Diodes. Our special screening covers all the parameters listed in the standard datasheet, including comprehensive package pin-out.

• 3ms transconductance at 2mA drain current
• 1000 GΩ input impedance
• 60V breakdown voltage
• gate-drain capacitance of only 1.5pF
• 4pF input capacitance
• 1.5 nV/√Hz noise at 1kHz
• best low-noise/low-capacitance combination in the industry
• lowest input capacitance per unit gate length in the industry
• lowest noise for a given gate length in the industry
• tight Vgs matching at operating bias

The LSK489 is particularly well suited to low-noise, high-gain audio and instrumentation circuits operating from battery voltages up to 60 volts. 48V phantom-powered circuits, like those used in microphone preamplifiers, are especially benefited by the features of the LSK489. Low operating Vgs, high gm, tight matching, low noise and low capacitance make it well-suited to numerous audio and instrumentation applications.

LSK489 Parts

• LSK489A TO-71 6L RoHS
• LSK489B TO-71 6L RoHS
• LSK489A SOIC 8L RoHS
• LSK489B SOIC 8L RoHS
• LSK489A SOT-23 6L RoHS
• LSK489B SOT-23 6L RoHS
• 489 DFN 8L RoHS
• LSK489A Die
• LSK489B Die