2N6909, 2N6908 Datasheet (Siliconix)

2N6909, 2N6908, N-Channel JFET

2N6908 SERIES N-Channel JFET Circuits The 2N690B Series is much more than a JFET.

The addition of back-to-back diodes effectively clamps input "over-voltage" while a high-performance JFET provides an effective amplification stage.

With the addition of a source resistor, a complete common-source amplifier is created which provides both low leakage ,and very low noise.

This performance is especially effective as a small signal pre-amplifier as well as impedance matching between low and high impeda