2N3957 Datasheet and Replacement

Databook.fxp 1/14/99 11:30 AM Page B-6B-6 01/992N3957, 2N3958N-Channel Dual Silicon Junction Field-Effect TransistorAbsolute maximum ratings at TA = 25C Low and Medium FrequencyReverse Gate Source & Reverse Gate Drain Voltage 50 VDifferential AmplifiersGate Current 50 mA High Input ImpedanceTotal Device Power Dissipation (each side) 250 mW@ 85C Case Temperature

2N3958Vishay SiliconixMonolithic N-Channel JFET DualPRODUCT SUMMARYVGS(off) (V) V(BR)GSS Min (V) gfs Min (mS) IG Max (pA) jVGS1 VGS2j Max (mV)1.0 to 4.5 50 1 50 25FEATURES BENEFITS APPLICATIONSD Monolithic Design D Tight Differential Match vs. Current D Wideband Differential AmpsD High Slew Rate D Improved Op Amp Speed, Settling Time D High-Speed,Accuracy Temp-

Databook.fxp 1/14/99 11:29 AM Page B-501/99 B-52N3954, 2N3955, 2N3956N-Channel Dual Silicon Junction Field-Effect TransistorAbsolute maximum ratings at TA = 25C Low and Medium FrequencyReverse Gate Source & Reverse Gate Drain Voltage 50 VDifferential AmplifiersGate Current 50 mA High Input ImpedanceTotal Device Power Dissipation (each side) 250 mW@ 85C Case Tem