Switching
PN4391 Single N-Channel JFET switch
Linear Systems replaces discontinued Siliconix PN4391
FEATURES DIRECT REPLACEMENT ...
Description
PN4391 Single N-Channel JFET switch
Linear Systems replaces discontinued Siliconix PN4391
FEATURES DIRECT REPLACEMENT FOR SILICONIX PN4391 LOW ON RESISTANCE rDS(on) ≤ 30Ω LOW GATE OPERATING CURRENT ID(off) = 5pA FAST SWITCHING t(ON) ≤= 15ns PN4391 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 PN4391 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 PN4391 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 ‐4 ‐‐ ‐10 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 ‐‐ VGS = 0V, ID = 6mA VDS(on) Drain to Source On Voltage ‐‐ 0.35 0.4 VGS = 0V...
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