The LS4118A is an Ultra-High Input Impedance N-Channel JFET

The LS4118A provides ultra-high input impedance. The device is specified with a 1-pA limit and typically operates at 0.2 pA. The part is ideal for use as a high-impedance sensitive front-end amplifier.

FEATURES

DIRECT REPLACEMENT FOR SILICONIX 2N4118A

LOW POWER IDSS<90 µA

MINIMUM CIRCUIT LOADING IGSS

LS4118A Benefits:

◾ Insignificant Signal Loss / Error Voltage with High-Impedance Source

◾ Low Power Consumption (Battery)

◾ Maximum Signal Output, Low Noise

◾ High Sensitivity to Low-Level Signals

LS4118A Applications:

◾ High-Impedance Transducer

◾ Smoke Detector Input

◾ Infrared Detector Amplifier

◾ Precision Test Equipment