LS4392 Single N-Channel JFET switch Linear Systems replaces discontinued Siliconix 2N4392 FEATURES DIRECT REPLACEMENT FOR SILICONIX 2N4392 LOW ON RESISTANCE rDS(on) ≤ 60Ω LOW GATE OPERATING CURRENT ID(off) = 5pA FAST SWITCHING t(ON) ≤= 15ns LS4392 Benefits: ABSOLUTE MAXIMUM RATINGS1 @ 25°C (unless otherwise noted) Low Error Voltage Maximum Temperatures High-Speed Analog Circuit Performance Storage Temperature ‐65°C to +200°C Negligible “Off-Error,” Excellent Accuracy Good Frequency Response, Low Glitches Operating Junction Temperature ‐55°C to +200°C Eliminates Additional Buffering Maximum Power Dissipation Continuous Power Dissipation 1800mW LS4392 Applications: MAXIMUM CURRENT Analog Switches Gate Current (Note 1) IG = 50mA Choppers, Sample-and-Hold MAXIMUM VOLTAGES Normally “On” Switches, Current Limiters Gate to Drain Voltage / Gate to Source Voltage ‐40V LS4392 ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted) SYMBOL CHARACTERISTIC MIN TYP. MAX UNITS CONDITIONS BVGSS Gate to Source Breakdown Voltage ‐40 ‐‐ ‐‐ IG = ‐1µA, VDS = 0V V VGS(off) Gate to Source Cutoff Voltage ‐2 ‐‐ ‐5 VDS = 20V, ID = 1nA VGS(F) Gate to Source Forward Voltage ‐‐ 0.7 1 IG = 1mA, VDS = 0V VDS(on) Drain to Source On Voltage ‐‐ 0.25 ‐‐ VGS = 0V, ID = 3mA VDS(on) Drain to Source On Voltage ‐‐ 0.3 0.4 VGS = 0V, ID = 6mA VDS(on) Drain to Source On Voltage ‐‐ 0.35 ‐‐ VGS = 0V, ID = 12mA IDSS Drain to Source Saturation Current2 25 ‐‐ 75 mA VDS = 20V, VGS = 0V IGSS Gate Reverse Current ‐‐ ‐5 ‐100 VGS = ‐20V, VDS = 0V IG Gate Operating Current ‐‐ ‐5 ‐‐ VDG = 15V, ID = 10mA pA ‐‐ 5 ‐‐ VDS = 20V, VGS = ‐5V Drain Cutoff Current ID(off) ‐‐ 5 100 VDS = 20V, VGS = ‐7V ‐‐ 5 ‐‐ VDS = 20V, VGS = ‐12V rDS(on) Drain to Source On Resistance ‐‐ ‐‐ 60 Ω VGS = 0V, ID = 1mA LS4392 DYNAMIC ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted) SYMBOL CHARACTERISTIC TYP MIN MAX UNITS CONDITIONS The LS4392 features many of the superior characteristics of JFETs which make it a good choice for demanding analog switching applications and for specialized amplifier circuits. gfs Click To Buy Forward Transconductance 6 ‐‐ ‐‐ mS VDS = 20V, ID = 1mA, f = 1kHz Output Conductance 25 ‐‐ ‐‐ µS VDS = 20V, ID = 1mA, f = 1kHz rds(on) Drain to Source On Resistance ‐‐ ‐‐ 60 Ω VGS = 0V, ID = 0A, f = 1kHz Ciss Input Capacitance gos Crss Crss Reverse Transfer Capacitance Crss en Equivalent Input Noise Voltage 12 ‐‐ 14 3.3 ‐‐ ‐‐ 3.2 ‐‐ 3.5 2.8 ‐‐ ‐‐ 3 ‐‐ ‐‐ VDS = 20V, VGS = 0V, f = 1MHz pF VDS = 0V, VGS = ‐5V, f = 1MHz VDS = 0V, VGS = ‐7V, f = 1MHz VDS = 0V, VGS = ‐12V, f = 1MHz nV/√Hz VDS = 10V, ID = 10mA, f = 1kHz UNITS CONDITIONS ns VDD = 10V, VGS(H) = 0V LS4392 SWITCHING ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted) SYMBOL CHARACTERISTIC TYP Turn On Time td(on) tr td(off) Turn Off Time tf MIN MAX 2 ‐‐ 15 2 ‐‐ 5 6 ‐‐ 35 13 ‐‐ 20 Notes: 1. Absolute ratings are limiting values above which serviceability may be impaired 2. Pulse test: PW ≤ 300µs, Duty Cycle ≤ 3% LS4392 SWITCHING CIRCUIT PARAMETERS VGS(L) ‐7V RL ID(on) 1600Ω 6mA TO-18 (Bottom View) SWITCHING CIRCUIT Micross Components Europe Available Packages: LS4392 in TO-18 LS4392 in bare die. Contact Micross for full package and die dimensions Tel: +44 1603 788967 Email: [email protected] Web: http://www.micross.com/distribution Information furnished by Linear Integrated Systems and Micross Components is believed to be accurate and reliable. However, no responsibility is assumed for its use; nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Linear Integrated Systems.