Linear Integrated Systems
4042 Clipper Court Fremont, CA 94538 Tel: 510 490-9160 Fax: 510 353-0261
FEATURES
ULTRA LOW NOISE
e
n
= 3nV/Hz
LOW GATE LEAKAGE
I
G
= 15pA
ABSOLUTE MAXIMUM RATINGS
1
@ 25 C (unless otherwise stated)
Maximum Temperatures
Storage Temperature
-65 to +150 C
Operating Junction Temperature
-55 to +135 C
Maximum Power Dissipation
Continuous Power Dissipation @ +125 C
350mW
Maximum Currents
Gate Forward Current
I
G(F)
= 50mA
Maximum Voltages
Drain to Source
V
DSO
= 60V
Gate to Source
V
GSS
= 60V
Gate to Drain
V
GDS
= 60V
ELECTRICAL CHARACTERISTICS @ 25 C (unless otherwise stated)
SYMBOL
CHARACTERISTIC
MIN TYP MAX UNITS
CONDITIONS
BV
GSS
Gate to Source Breakdown Voltage
60
V
V
DS
= 0, I
D
= 1nA
V
GS(OFF)
Gate to Source Pinch-off Voltage
1
3.5
V
V
DS
= 15V, I
D
= 1nA
V
GS
Gate to Source Operating Voltage
0.5
3.5
V
V
DS
= 15V, I
D
= 500A
I
DSS
Drain to Source Saturation Current
1.5
5
15
mA
V
DG
= 15V, V
GS
= 0
I
G
Gate Operating Current
15
50
pA
V
DG
= 15V, I
D
= 500A
I
G
Gate Operating Current Reduced V
DG
5
30
pA
V
DG
= 3V, I
D
= 500A
I
GSS
Gate to Source Leakage Current
100
pA
V
DG
= 15V, V
DS
= 0
Y
fss
Full Conductance Transconductance
1500
mho
V
GD
= 15V, V
GS
= 0, f = 1kHz
Y
fs
Typical Conductance Transconductance 1000 1500
mho
V
DG
= 15V, I
D
= 500A
Y
oss
Full Output Conductance
20
mho
V
DG
= 15V, V
GS
= 0
Y
os
Typical
Output
Conductance
0.2
2
mho
V
DG
= 15V, I
D
= 500A
NF Noise
Figure
0.5
dB
V
DS
= 15V, V
GS
= 0, R
G
= 10M,
f = 100Hz, NBW = 6Hz
e
n
Noise
Voltage
3
7
nV/Hz
V
DS
= 15V, I
D
= 500A, f = 1kHz,
NBW = 1Hz
e
n
Noise
Voltage
11
nV/Hz
V
DS
= 15V, I
D
= 500A, f = 10Hz,
NBW = 1Hz
C
ISS
Common Source Input Capacitance
8
pF
C
RSS
Common Source Reverse Transfer Cap.
3
pF
V
DS
= 15V, I
D
= 500A
LS846
LOW NOISE, LOW LEAKAGE
SINGLE N-CHANNEL JFET
Linear Integrated Systems
1.
Absolute maximum ratings are limiting values above which serviceability may be impaired.
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 implication or otherwise under any patent or patent rights of Linear Integrated Systems.
*For equivalent monolithic dual, see LS843 family.
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