Databook.fxp 1/13/99 2:09 PM Page F-24 F-24 01/99 NJ42 Process Silicon Junction Field-Effect Transistor ¥ General Purpose Amplifier ¥ High Breakdown Voltage S Absolute maximum ratings at TA = 25¡C Gate Current, Ig Operating Junction Temperature, Tj Storage Temperature, Ts 10 mA +150°C – 65°C to +175°C D Devices in this Databook based on the NJ42 Process. Datasheet S 2N6449, 2N6450 IFN6449, IFN6450 Die Size = 0.032" X 0.032" All Bond Pads = 0.004", Dia. Substrate is also Gate. At 25°C free air temperature: NJ42 Process Static Electrical Characteristics Gate Source Breakdown Voltage V(BR)GSS Reverse Gate Leakage Current IGSS Drain Saturation Current (Pulsed) IDSS Gate Source Cutoff Voltage VGS(OFF) Min Typ – 300 – 400 Max Unit Test Conditions V IG = 1 µA, VDS = ØV – 10 nA VGS = – 150V, VDS = ØV 2 10 mA VDS = 30V, VGS = ØV –2 – 12 V VDS = 30V, ID = 1 nA µS VDS = 30V, VGS = ØV f = 1 kHz –1 Dynamic Electrical Characteristics Forward Transconductance gfs 800 Input Capacitance Ciss 6 10 pF VDS = 30V, VGS = ØV f = 1 MHz Feedback Capacitance Crss 2 5 pF VDS = 30V, VGS = ØV f = 1 MHz Equivalent Noise Voltage ēN 10 1000 N. Shiloh Road, Garland, TX 75042 (972) 487-1287 FAX (972) 276-3375 nV/√HZ VDS = 15V, VGS = ØV f = 1 kHz www.interfet.com Databook.fxp 1/13/99 2:09 PM Page F-25 F-25 01/99 NJ42 Process Silicon Junction Field-Effect Transistor Drain Current as a Function of VDS Gfs as a Function of VGS(OFF) VGS(OFF) = Ð4.2 V 3.0 1.2 Transconductance in mS VGS = –1 V 2.0 VGS = –2 V 1.0 VGS = –3 V VGS = –4 V 10 15 1.0 0.8 0.6 0.4 0.2 20 2 4 6 8 10 12 Drain to Source Voltage in Volts Gate Source Cutoff Voltage in Volts Drain Saturation Current as a Function of VGS(OFF) Drain Saturation Current as a Function of Temperature 8 6 4 2 –2 Output Admittance in mS 5 –4 –6 –8 – 10 16 VDS = 150 V VDS = 30 V 12 8 4 IDSS = 5.5 mA IDSS = 2.5 mA – 75 – 25 0 75 125 Free Air Temperature in °C Output Admittance as a Function of VGS Capacitance as a Function of VGS 1.0 10 0.8 8 0.6 IDSS = 5.5 mA 0.4 IDSS = 2.5 mA 0.2 0 IDSS = 9 mA Gate Source Cutoff Voltage in Volts Capacitance in pF Drain Saturation Current in mA 0 Zero Gate Voltage Drain Current in mA Drain Current in mA VGS = Ø V 10 20 30 40 Drain Source Voltage in Volts 50 175 VDS = 30 V VDS = 50 V 6 4 2 – 0.1 –1 Gate Source Voltage in Volts – 10 – 20