01/99
B-47
IFN5911, IFN5912
N-Channel Dual Silicon Junction Field-Effect Transistor
Absolute maximum ratings at T = 25¡C
¥ VHF Amplifiers
¥ Wideband Differential
Amplifiers
A
Continuous Forward Gate Current
Continuous Device Power Dissipation
Power Derating
50 mA
500 mW
4 mW/°C
Storage Temperature Range
– 65°C to 200°C
At 25°C free air temperature:
Static Electrical Characteristics
Gate Source Breakdown Voltage
IFN5911
IFN5912
Process NJ30L or NJ36D
Test Conditions
Min Max Min Max Unit
V
– 25
– 25
V
– 100 pA
– 250 nA
– 100 pA
– 100 nA
I = – 1 µA, V = ØV
G DS
(BR)GSS
– 100
– 250
– 100
– 100
– 5
V
= – 15V, V = ØV
DS
GS
Gate Reverse Current
Gate Operating Current
I
GSS
V
= – 15V, V = ØV
DS
T = 150°C
A
GS
V
= 10V, I = 5 mA
D
DG
I
G
V
= 10V, I = 5 mA
D
T = 125°C
A
DG
Gate Source Cutoff Voltage
Gate Source Voltage
V
– 1
– 1
– 5
V
V
V
= 10V, I = 1 nA
GS(OFF)
DS D
V
– 0.3 – 4 – 0.3 – 4
40 40
V
= 10V, I = 5 mA
GS
DS D
Drain Saturation Current (Pulsed)
I
7
7
mA
V
= 10V, V = ØV
DSS
DS GS
Dynamic Electrical Characteristics
3000 10000 3000 10000 µS
3000 10000 3000 10000 µS
V
= 10V, I = 5 mA
D
f = 1 kHz
Common Source
Forward Transconductance
DG
g
g
fs
V
= 10V, I = 5 mA
D
f = 100 MHz
f = 1 kHz
DG
100
150
5
100
150
5
µS
µS
pF
V
= 10V, I = 5 mA
D
Common Source
Output Conductance
DG
os
V
= 10V, I = 5 mA
D
f = 100 MHz
f = 1 MHz
DG
Common Source Input Capacitance
C
V
= 10V, I = 5 mA
iss
DG D
Common Source
Reverse Transfer Capacitance
C
1.2
20
1
1.2
20
1
pF
V
= 10V, I = 5 mA
f = 1 MHz
f = 10 kHz
f = 10 Hz
rss
DG D
Equivalent Short Circuit
Input Noise Voltage
nV/√Hz
e¯
V
= 10V, I = 5 mA
N
DG D
V
= 10V, I = 5 mA
D
DG
Noise Figure
NF
dB
nA
R = 100 KΩ
G
Differential Gate Current
|I | – |I
|
20
1
20
1
V
= 10V, I = 5 mA
T = 125°C
A
G1
G2
DG
D
Saturation Drain Current Ratio
Differential Gate Source Voltage
I
/I
0.95
0.95
0.95
0.95
V
= 10V, V = ØV
DSS1 DSS2
DS GS
V
– V
10
15
mV
V = 10V, I = 5 mA
DG D
GS1
GS2
∆V – V
T = 25°C
A
GS1
GS2
20
40 µV/°C
V
= 10V, I = 5 mA
D
DG
∆T
T = 125°C
B
Gate Source Voltage
Differential Drift
∆V – V
T = – 55°C
A
GS1
GS2
20
1
40 µV/°C
1
V
= 10V, I = 5 mA
D
DG
∆T
T = 25°C
B
Transconductance Ratio
g
/g
V
= 10V, I = 5 mA
f = 1 kHz
fs1 fs2
DG D
TOÐ78 Package
See Section G for Outline Dimensions
Pin Configuration
1 Source, 2 Drain, 3 Gate, 4 Case,
5 Source, 6 Drain, 7 Gate, 8 Omitted
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