N-Channel JFET
Low Noise Amplifier
CORPORATION
2N4338 – 2N4341
FEATURES
ABSOLUTE MAXIMUM RATINGS
(TA = 25oC unless otherwise noted)
Exceptionally High Figure of Merit
Radiation Immunity
Extremely Low Noise and Capacitance
High Input Impedance
•
Gate-Source or Gate-Drain Voltage . . . . . . . . . . . . . . . . -50V
Gate Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA
Storage Temperature Range . . . . . . . . . . . . . -65oC to +200oC
Operating Temperature Range . . . . . . . . . . . -55oC to +175oC
Lead Temperature (Soldering, 10sec) . . . . . . . . . . . . . +300oC
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300mW
Derate above 25oC . . . . . . . . . . . . . . . . . . . . . . . 2.0mW/oC
NOTE: Stresses above those listed under "Absolute Maximum
Ratings" may cause permanent damage to the device. These are
stress ratings only and functional operation of the device at these or
any other conditions above those indicated in the operational sections
of the specifications is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability.
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•
•
APPLICATIONS
Low-level Choppers
Data Switches
Multiplexers and Low Noise Amplifiers
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•
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PIN CONFIGURATION
ORDERING INFORMATION
Part
Package
Temperature Range
-55oC to +175oC
TO-18
2N4338-41
Hermetic TO-18
X2N4338-41 Sorted Chips in Carriers -55oC to +175oC
G,C
S
D
5010
ELECTRICAL CHARACTERISTICS (TA = 25oC unless otherwise specified)
2N4338
2N4339
2N4340
2N4341
SYMBOL
PARAMETER
Gate Reverse Current
UNITS
TEST CONDITIONS
MIN MAX MIN MAX MIN MAX MIN MAX
-0.1
-0.1
-0.1
-0.1
-0.1
-0.1
-0.1
-0.1
nA
IGSS
VGS = -30V, VDS = 0
TA = 150oC
µA
BVGSS
VGS(off)
Gate-Source Breakdown Voltage
Gate-Source Cutoff Voltage
-50
-50
-50
-1
-50
-2
IG = -1µA, VDS = 0
V
-0.3
-1
-0.6 -1.8
-3
-6
VDS = 15V, ID = 0.1µA
0.05
(-5)
0.05
(-5)
0.05
(-5)
0.07
(-10) (V)
nA
V
DS = 15V,
ID(off)
IDSS
gfs
Drain Cutoff Current
VGS = ( )
Saturation Drain Current (Note 2)
0.2 0.6 0.5 1.5 1.2 3.6
3
9
mA
VDS = 15V, VGS = 0
Common-Source Forward
Transconductance (Note 2)
600 1800 800 2400 1300 3000 2000 4000
V
DS = 15V,
GS = 0
µS
V
f = 1kHz
gos
Common-Source Output Conductance
Drain-Source ON Resistance
5
2500
7
15
1700
7
30
1500
7
60
rDS(on)
Ciss
800 ohm VDS = 0, IDS = 0
7
Common-Source Input Capacitance
V
DS = 15V,
pF
f = 1MHz
f = 1kHz
Common-Source Reverse Transfer
Capacitance
VGS = 0 (Note 1)
Crss
3
3
3
3
VDS = 15V,
VGS = 0
Rgen = 1meg,
BW = 200Hz
NF
Noise Figure (Note 1)
1
1
1
1
dB
NOTES: 1. For design reference only, not 100% tested.
2. Pulse test duration 2ms (non-JEDEC Condition).