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, ID = 12mA IDSS Drain to Source Saturation Current2 50 ‐‐ 100 mA VDS = 20V, VGS = 0V IGSS Gate Reverse Current ‐‐ ‐5 ‐1000 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 ‐‐ VDS = 20V, VGS = ‐7V ‐‐ 5 1000 VDS = 20V, VGS = ‐12V rDS(on) Drain to Source On Resistance ‐‐ ‐‐ 30 Ω VGS = 0V, ID = 1mA PN4391 DYNAMIC ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted) SYMBOL CHARACTERISTIC TYP MIN MAX UNITS CONDITIONS The PN4391 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 ‐‐ ‐‐ 30 Ω VGS = 0V, ID = 0A, f = 1kHz Ciss Input Capacitance 12 ‐‐ 16 Reverse Transfer Capacitance 3.5 ‐‐ ‐‐ 3.4 ‐‐ ‐‐ pF VDS = 20V, VGS = 0V, f = 1MHz Crss 3 ‐‐ 5 3 ‐‐ ‐‐ gos Crss Crss en Equivalent Input Noise Voltage 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 PN4391 SWITCHING ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted) SYMBOL CHARACTERISTIC TYP td(on) Turn On Time Turn Off Time 6 ‐‐ 20 13 ‐‐ 15 tr td(off) tf MIN MAX UNITS CONDITIONS 2 ‐‐ 15 2 ‐‐ 5 ns VDD = 10V, VGS(H) = 0V Notes: 1. Absolute ratings are limiting values above which serviceability may be impaired 2. Pulse test: PW ≤ 300µs, Duty Cycle ≤ 3% PN4391 SWITCHING CIRCUIT PARAMETERS SWITCHING CIRCUIT TO-92 (Bottom View) RL 800Ω ID(on) 12mA Available Packages: PN4391 in TO-92 PN4391 in bare die. Contact Micross for full package and die dimensions VGS(L) ‐12V Micross Components Europe 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.