LS4393 Single N-Channel JFET switch Linear Systems replaces discontinued Siliconix 2N4393 FEATURES DIRECT REPLACEMENT FOR SILICONIX 2N4393 LOW ON RESISTANCE rDS(on) ≤ 100Ω LOW GATE OPERATING CURRENT ID(off) = 5pA FAST SWITCHING t(ON) ≤= 15ns LS4393 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 350mW LS4393 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 ‐35V LS4393 ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted) SYMBOL CHARACTERISTIC MIN TYP. MAX UNITS CONDITIONS BVGSS Gate to Source Breakdown Voltage ‐35 ‐‐ ‐‐ IG = ‐1µA, VDS = 0V V VGS(off) Gate to Source Cutoff Voltage ‐0.5 ‐‐ ‐3 VDS = 15V, ID = 10nA 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 5 ‐‐ ‐‐ mA VDS = 20V, VGS = 0V IGSS Gate Reverse Current ‐‐ ‐5 ‐100 VGS = ‐20V, VDS = 0V pA IG Gate Operating Current ‐‐ ‐5 ‐‐ VDG = 15V, ID = 10mA ID(off) Drain Cutoff Current ‐‐ 5 100 VDS = 10V, VGS = ‐10V rDS(on) Drain to Source On Resistance ‐‐ ‐‐ 100 Ω VGS = 0V, ID = 1mA LS4393 DYNAMIC ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted) SYMBOL CHARACTERISTIC TYP MIN MAX UNITS CONDITIONS The LS4393 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 gos rds(on) Click To Buy Forward Transconductance 6 mS VDS = 20V, ID = 1mA, f = 1kHz Output Conductance 25 ‐‐ ‐‐ µS VDS = 20V, ID = 1mA, f = 1kHz ‐‐ ‐‐ 100 Ω VGS = 0V, ID = 0A, f = 1kHz Input Capacitance 13 ‐‐ ‐‐ 3.6 ‐‐ ‐‐ Reverse Transfer Capacitance 3.5 ‐‐ ‐‐ 3.1 ‐‐ ‐‐ 3 ‐‐ ‐‐ Crss Crss en ‐‐ Drain to Source On Resistance Ciss Crss ‐‐ Equivalent Input Noise Voltage 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 LS4393 SWITCHING ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted) SYMBOL CHARACTERISTIC TYP 2 ‐‐ ‐‐ Turn On Time 2 ‐‐ ‐‐ 6 ‐‐ ‐‐ 13 ‐‐ ‐‐ td(on) tr td(off) Turn Off Time tf MIN MAX Notes: 1. Absolute ratings are limiting values above which serviceability may be impaired 2. Pulse test: PW ≤ 300µs, Duty Cycle ≤ 3% LS4393 SWITCHING CIRCUIT PARAMETERS VGS(L) ‐5V RL 3200Ω 3mA ID(on) SOT-23 (Top View) SWITCHING CIRCUIT Micross Components Europe Available Packages: LS4393 in SOT-23 LS4393 in bare die. Tel: +44 1603 788967 Email: [email protected] Web: http://www.micross.com/distribution Contact Micross for full package and die dimensions 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.