Linear Systems JFETs LSK489A SOIC 8L ROHS

The LSK489A is a monolithic dual N-channel JFET amplifier designed for low-noise precision applications such as differential amplifiers, high-speed comparators, and acoustic sensors. It is packaged in an 8-lead SOIC surface mount format, with a maximum power dissipation of 300 mW per side and an operating temperature range from -55°C to +150°C. The device features a typiull input capacitance of 4 pF, noise voltage of 1.8 nV/√Hz at 1 kHz, and a common mode rejection ratio of 102 dB. Gate-to-source breakdown voltage is 60 V, and drain-to-source saturation current ranges from 2.5 mA to 8.5 mA for the A grade. The SOIC package is pin-compatible with the LSK389 in the same format. The part meets RoHS compliance. The LSK489A series includes variations in IDSS grading but shares all package and electrical characteristics described.