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Datasheet: J108 (Linear Integrated Systems)

LOW NOISE SINGLE N-CHANNEL JFET SWITCH

 

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Linear Integrated Systems

FEATURES
Direct Replacement for Siliconix J/SST: 108, 109, 110, & 110A
LOW ON RESISTANCE
r
DS(on)
8
FAST SWITCHING
t
ON
4ns
ABSOLUTE MAXIMUM RATINGS
1
@ 25 C (unless otherwise stated)
Maximum Temperatures
Storage Temperature
-55 to 150C
Junction Operating Temperature
-55 to 150C
Maximum Power Dissipation
Continuous Power Dissipation
350mW
Maximum Currents
Gate Current
50mA
Maximum Voltages
Gate to Drain or Source
-25V
STATIC ELECTRICAL CHARACTERISTICS @25 C (unless otherwise stated)
J/SST108
J/SST109
J/SST110
SYM.
CHARACTERISTIC
TYP
MIN MAX
MIN MAX
MIN MAX
UNIT CONDITIONS
BV
GSS
Gate
to
Source
Breakdown
Voltage
-25 -25 -25
I
G
= -1A, V
DS
= 0V
V
GS(off)
Gate to Source Cutoff Voltage
-3
-10
-2
-6
-0.5
-4 V
DS
= 5V, I
D
= 1A
V
GS(F)
Gate
to
Source
Forward
Voltage
0.7
V
I
G
= 1mA, V
DS
= 0V
I
DSS
Drain to Source Saturation Current
2
80 40 10 mA
V
DS
= 15V, V
GS
= 0V
I
GSS
Gate
Leakage
Current
-0.01
-3 -3 -3
V
GS
= -15V, V
DS
= 0V
I
G
Gate
Operating
Current
-0.01
V
DG
= 10V, I
D
= 10mA
I
D(off)
Drain
Cutoff
Current
0.02
3 3 3
nA
V
DS
= 5V, V
GS
= -10V
108,
109,
110 8 12 18
r
DS(on)
Drain to Source
On Resistance
110A 25
V
GS
= 0V, V
DS
0.1V
DYNAMIC ELECTRICAL CHARACTERISTICS @25 C (unless otherwise stated)
J/SST108
J/SST109
J/SST110
SYM.
CHARACTERISTIC
TYP
MIN MAX
MIN MAX
MIN MAX
UNIT CONDITIONS
g
fs
Forward
Transconductance
17
g
os
Output
Conductance
0.6
mS
V
DS
= 5V, I
D
= 10mA
f = 1kHz
r
ds(on)
Drain to Source On Resistance
8
12
18
V
GS
= 0V, I
D
= 0A
f = 1kHz
SST
60
C
iss
Input
Capacitance
J 60 85 85 85
V
DS
= 0V, V
GS
= 0V
f = 1MHz
SST
11
C
rss
Reverse Transfer
Capacitance
J 11 15 15 15
pF
V
DS
= 0V, V
GS
= -10V
f = 1MHz
e
n
Equivalent
Input
Noise
Voltage 3.5
nV/Hz
V
DS
= 5V, I
D
= 10mA
f = 1kHz
J SERIES
TO-92
BOTTOM VIEW
1
2
3
D S G
SST SERIES
1
2
3
SOT-23
TOP VIEW
D
G
S
Linear Integrated Systems
J/SST108 SERIES
LOW NOISE SINGLE
N-CHANNEL JFET SWITCH







































Linear Integrated Systems
4042 Clipper Court Fremont, CA 94538 Tel: 510 490-9160 Fax: 510 353-0261

SWITCHING CHARACTERISTICS
SYM. CHARACTERISTIC TYP UNIT CONDITIONS
t
d(on)
3
t
r
Turn On Time
1
t
d(off)
4
t
f
Turn Off Time
18
ns
V
DD
= 1.5V
V
GS(H)
= 0V
51
1k
51
SWITCHING TEST CIRCUIT
R
L
V
DD
V
GS(H)
V
GS(L)
OUT






SWITCHING CIRCUIT CHARACTERISTICS
SYM.
J/SST108 J/SST109 J/SST110
V
GS(L)
-12V -7V
-5V
R
L
150 150 150
I
D(on)
10mA 10mA 10mA













Linear Integrated Systems
4042 Clipper Court Fremont, CA 94538 Tel: 510 490-9160 Fax: 510 353-0261
n or













1
2
3
SOT-23
DIMENSIONS IN
MILLIMETERS
0.89
1.03
1.78
2.05
1.20
1.40
2.10
2.64
0.37
0.51
2.80
3.04
0.89
1.12
0.013
0.100
0.085
0.180
0.55
1
2
3
LS XXX
YYWW
0.170
0.195
0.500
0.610
0.016
0.022
0.095
0.105
0.045
0.055
0.175
0.195
0.130
0.155
0.045
0.060
0.014
0.020
TO-92
DIMENSIONS
IN INCHES.






NOTES
1.
Absolute maximum ratings are limiting values above which serviceability may be impaired.
2.
Pulse test: PW 300s, Duty Cycle 3%
Information furnished by Linear Integrated Systems 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 implicatio
otherwise under any patent or patent rights of Linear Integrated Systems.



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