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LS4118

Micross
Part Number LS4118
Manufacturer Micross
Description High Impedence
Published Jun 13, 2011
Detailed Description LS4118 N-CHANNEL JFET Linear Systems replaces discontinued Siliconix 2N4118 The LS4118 is an Ultra-High Input Impedance...
Datasheet PDF File LS4118 PDF File

LS4118
LS4118


Overview
LS4118 N-CHANNEL JFET Linear Systems replaces discontinued Siliconix 2N4118 The LS4118 is an Ultra-High Input Impedance N-Channel JFET The LS4118 provides ultra-high input impedance.
The device is specified with a 10-pA limit and is ideal for use as a high-impedance sensitive front-end amplifier.
FEATURES  DIRECT REPLACEMENT FOR SILICONIX 2N4118  LOW POWER  MINIMUM CIRCUIT LOADING  ABSOLUTE MAXIMUM RATINGS   @ 25°C (unless otherwise noted)  Maximum Temperatures  Storage Temperature  Operating Junction Temperature  Maximum Power Dissipation  Continuous Power Dissipation   MAXIMUM CURRENT Gate Current (Note 1)  MAXIMUM VOLTAGES  Gate to Drain or Gate to Source (Note 2)    IDSS<90 µA   IGSS<10 pA  www.
DataSheet4U.
com LS4118 Benefits: ƒ ƒ ƒ ƒ Insignificant Signal Loss/Error Voltage with High-Impedance Source Low Power Consumption (Battery) Maximum Signal Output, Low Noise High Sensitivity to Low-Level Signals ‐65°C to +175°C  ‐55°C to +150°C  300mW  50mA  ‐40V    LS4118 Applications: ƒ ƒ ƒ ƒ High-Impedance Transducer Smoke Detector Input Infrared Detector Amplifier Precision Test Equipment   LS4118 ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted) SYMBOL  CHARACTERISTIC  MIN  TYP.
  MAX  UNITS  CONDITIONS  BVGSS  Gate to Source Breakdown Voltage  ‐40  ‐‐  ‐‐  V  IG = ‐1µA,   VDS = 0V  VGS(off)  Gate to Source Cutoff Voltage  ‐1  ‐‐  ‐3  V                    VDS = 10V,   ID = 1nA  IDSS  Gate to Source Saturation Current  0.
08  ‐‐  0.
24  mA  VDS = 10V,   VGS = 0V  IGSS  Gate Leakage Current  ‐‐  ‐‐  ‐10  pA  VGS = ‐20V,  VDS = 0V  ‐‐  ‐‐  ‐25  VGS = ‐20V,  VDS = 0V,  150°C  gfs  Forward Transconductance(Note 3)  80  ‐‐  250  µmho  VDS = 10V,   VGS = 0V,   f = 1kHz    gos  Output Conductance  ‐‐  ‐‐  5  Ciss  Input Capacitance  ‐‐  ‐‐  3  pF  VDS = 10V,   VGS = 0V,   f = 1MHz  Crss  Reverse Transfer Capacitance  ‐‐  ‐‐  1.
5                                1 .
 Absolute maximum ratings are limiting values above which LS4118 serviceability may be impaired.
   NOT...


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