LSJ310 N-CHANNEL JFET
Linear Systems replaces discontinued Siliconix LSJ310
The LSJ310 is a high frequency n-channel JFET offering a wide range and low noise performance. The SOT-23 package is well suited for cost sensitive applications and mass production. (See Packaging Information). FEATURES DIRECT REPLACEMENT FOR SILICONIX J310 OUTSTANDING HIGH FREQUENCY GAIN LOW HIGH FREQUENCY NOISE ABSOLUTE MAXIMUM RATINGS @ 25°C1 Gpg = 11.5dB NF = 2.7dB
Maximum Temperatures Storage Temperature ‐55°C to +150°C High Power Low Noise gain Operating Junction Temperature ‐55°C to +135°C Dynamic Range greater than 100dB Maximum Power Dissipation Easily matched to 75Ω input Continuous Power Dissipation 350mW LSJ310 Applications: MAXIMUM CURRENT Gate Current 10mA UHV / VHF Amplifiers MAXIMUM VOLTAGES Mixers Gate to Drain Voltage or Gate to Source Voltage ‐25V Oscillators LSJ310 ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted) SYMBOL CHARACTERISTIC MIN TYP. MAX UNIT CONDITIONS BVGSS Gate to Source Breakdown Voltage ‐25 ‐‐ ‐‐ V VDS = 0V, IG = ‐1µA VGS(F) Gate to Source Forward Voltage 0.7 ‐‐ 1 VDS = 0V, IG = 10mA VGS(off) Gate to Source Cutoff Voltage ‐2 ‐‐ ‐6.5 VDS = 10V, ID = 1nA IDSS Drain to Source Saturation Current2 24 ‐‐ 60 mA VDS = 10V, VGS = 0V IG Gate Operating Current (Note 3) ‐‐ ‐15 ‐‐ pA VDG = 9V, ID = 10mA rDS(on) Drain to Source On Resistance ‐‐ 35 ‐‐ Ω VGS = 0V, ID = 1mA LSJ310 DYNAMIC ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted) SYMBOL CHARACTERISTIC MIN TYP. MAX UNIT CONDITIONS gfs Forward Transconductance 8 14 ‐‐ mS VDS = 10V, ID = 10mA , f = 1kHz gos Output Conductance ‐‐ 110 250 µS Ciss Input Capacitance ‐‐ 4 5 pF VDS = 10V, VGS = ‐10V , f = 1MHz Crss Reverse Transfer Capacitance ‐‐ 1.9 2.5 en Equivalent Noise Voltage 6 ‐‐ ‐‐ nV/√Hz VDS = 10V, ID = 10mA , f = 100Hz LSJ310 HIGH FREQUENCY CHARACTERISTICS @ 25°C (unless otherwise noted) SYMBOL CHARACTERISTIC MIN TYP MAX UNIT CONDITIONS
LSJ310 Benefits:
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Noise Figure Power Gain3 Forward Transconductance Output Conductance f = 105MHz f = 450MHz f = 105MHz f = 450MHz f = 105MHz f = 450MHz f = 105MHz f = 450MHz ‐‐ ‐‐ ‐‐ ‐‐ ‐‐ ‐‐ ‐‐ ‐‐ 1.5 2.7 16 11.5 14 13 0.16 0.55 ‐‐ ‐‐ ‐‐ ‐‐ ‐‐ ‐‐ ‐‐ ‐‐ dB dB mS Available Packages: LSJ310 in SOT-23 LSJ310 in bare die. SOT-23 (Top View)
NF Gpg gfg gog
VDS = 10V, ID = 10mA
Absolute maximum ratings are limiting values above which LSJ310 serviceability may be impaired. Note 1 ‐ Note 2 ‐ Duty Cycle ≤ 3% Pulse test : PW ≤ 300µs, Note 3 ‐ Measured at optimum input noise match Components Micross Europe
Tel: +44 1603 788967 Email:
[email protected] Web: http://www.micross.com/distribution
Please contact Micross for full package and die dimensions
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Micross Components Ltd, United Kingdom, Tel: +44 1603 788967, Fax: +44 1603788920, Email:
[email protected] Web: www.micross.com/distribution.aspx
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