Datasheet LSJ689 (Linear Systems) - 2
Manufacturer | Linear Systems |
Description | Low Noise Low Capacitance Monolithic Dual P-Channel JFET Amplifier |
Pages / Page | 6 / 2 — MATCHING CHARACTERISTICS @ 25°C (unless otherwise stated). SYMBOL. … |
File Format / Size | PDF / 604 Kb |
Document Language | English |
MATCHING CHARACTERISTICS @ 25°C (unless otherwise stated). SYMBOL. CHARACTERISTIC. MIN. TYP MAX UNITS. CONDITIONS
Model Line for this Datasheet
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MATCHING CHARACTERISTICS @ 25°C (unless otherwise stated) SYMBOL CHARACTERISTIC MIN TYP MAX UNITS CONDITIONS
G V S1− G V S2 Differential Gate to Source Voltage 20 mV VDS = -15V, IG = -1mA IDSS1 Saturation Drain Current Ratio 0.90 1.0 VDS = -15V, VGS = 0V IDSS2
COMMON MODE REJECTION RATIO
CMRR 95 102 db VDS = -10V to -20V, ID = -200µA -20 log│∆VGS1-2/∆VDS│
SYMBOL CHARACTERISTIC MIN TYP MAX UNITS CONDITIONS
V e DS = -15V, ID = -2.0mA, f = 1kHz, n Noise Voltage 1.9 nV/√Hz NBW = 1Hz V e DS = -15V, ID = -2.0mA, f = 100Hz, n Noise Voltage 2.2 nV/√Hz NBW = 1Hz CISS Common Source Input Capacitance 8 pF VDS = -15V, ID = -200µA, f = 1MHz Common Source Reverse Transfer CRSS 3 pF Capacitance
ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise stated) SYMBOL CHARACTERISTIC MIN TYP MAX UNITS CONDITIONS
BVGSS Gate to Source Breakdown Voltage 50 V VDS = 0V, IG = 1µA V(BR)G1 - G2 Gate to Gate Breakdown Voltage ±30 ±45 V IG= ±1µA, ID=IS=0A (Open Circuit) VGS(OFF) Gate to Source Pinch-off Voltage 1.50 5.0 V VDS = -15V, ID = -1nA I 2 DSS Drain to Source Saturation Current -2.5 -30 mA VDS = -15V, VGS = 0V IG Gate Operating Current 2 pA VDG = -15V, ID = -200µA IGSS Gate to Source Leakage Current 0.9 100 pA VGS = 15V, VDS = 0V Gfs Full Conductance Transconductance 1500 µS VDS = -15V, VGS = 0V, f = 1kHz Gfs Transconductance 1500 µS VDS = -15V, ID = -200µA, f = 1kHz GOS Full Output Conductance 38 µS VDS = -15V, VGS = 0V, f = 1kHz GOS Output Conductance 3 µS VDS = -15V, ID = -200µA, f = 1kHz NF Noise Figure 0.5 db VDS = -15V, VGS = 0V, RG = 10mΩ
TYPICAL SPICE PARAMETERS FOR LSJ689 IN LT SPICE FORMAT:
LSJ689_4 IDSS = 14.0mA RDS=112 .MODEL LSJ689_4 PJF (LEVEL=1 BETA=28E-4 VTO=-2.75 LAMBDA=2E-3 + IS=4.5E-16 N= 1 RD=73 RS=35 CGD=6E-12 CGS=11E-12 PB=0.25 MJ=0.3 FC=0.5 + KF=2E-18 AF=1 XTI=0) Linear Integrated Systems • 4042 Clipper Court • Fremont, CA 94538 • Tel: 510 490-9160 • Fax: 510 353-0261 Doc 201180 07/23/19 Rev#A9 ECN# LSJ689