140 COMMERCE DRIVE
MONTGOMERYVILLE, PA
18936-1013
PHONE: (215) 631-9840
FAX: (215) 631-9855
MS4080
RF & MICROWAVE TRANSISTORS
HF/VHF/UHF N-CHANNEL MOSFETS
Features
•
•
•
•
•
2 - 400 MHz
15 WATTS
28 VOLTS
13 dB MIN. AT 150 MHz
CLASS A OR AB
DESCRIPTION:
The MS4080 is a gold metallized N-Channel Enhancement Mode
MOSFET. The MS4080 is intended for use in 28 Vdc large signal
applications up to 400 MHz.
ABSOLUTE MAXIMUM RATINGS
(Tcase = 25°C)
°
Symbol
V
(BR)DSS
V
DGR
V
GS
I
D
P
DISS
T
STG
T
J
Parameter
Drain - Source Voltage
Drain - Gate Voltage
Gate - Source Voltage
Drain Current
Power Dissipation
Storage Temperature
Junction Temperature
Value
65
65
±
40
2.5
55
-65 to +150
200
Unit
V
V
V
A
W
°
C
°
C
Thermal Data
R
TH(j-c)
Junction - Case Thermal Resistance
3.2
°
C/W
MSC0891.PDF 11-03-98
MS4080
ELECTRICAL SPECIFICATIONS (Tcase = 25°C)
(Tcase 25
°
STATIC
Symbol
V
(BR)DSS
I
DSS
I
GSS
V
GS
G
FS
C
ISS
C
OSS
C
RSS
V
GS
= 0V
V
GS
= 0V
V
GS
= 40V
V
DS
= 10V
V
DS
= 10V
V
DS
= 28V
V
DS
= 28V
V
DS
= 28V
Test Conditions
Min.
I
DS
= 5mA
V
DS
= 28V
V
DS
= 0V
I
D
= 25mA
I
D
= 250mA
V
GS
= 0V
f
= 1MHz
V
GS
= 0V
f
= 1MHz
V
GS
= 0V
f
= 1MHz
60
----
----
1.0
0.25
----
----
----
Value
Typ.
----
----
----
----
----
21.5
16.5
2.70
Max.
----
2.0
1.0
6.0
----
----
----
----
Unit
V
mA
µ
A
V
mho
pF
pF
pF
DYNAMIC
Symbol
P
IN
G
PS
η
Test Conditions
Min.
f
= 150 MHz
V
DD
= 28V
P
OUT
= 15 W(PEP)
I
DQ
= 25mA
f
= 150 MHz
V
DD
= 28V
P
OUT
= 15 W(PEP)
I
DQ
= 25mA
f
= 150 MHz
V
DD
= 28V
P
OUT
= 15 W(PEP)
I
DQ
= 25mA
----
13
50
Value
Typ.
----
----
----
Max.
0.75
----
----
Unit
W
dB
%
MSC0891.PDF 11-03-98
MS4080
Power Out vs Power In
18.0
16.0
Pout, OUTPUT POWER (WATTS)
14.0
12.0
10.0
8.0
6.0
4.0
2.0
0.0
0.04
0.08
0.12
0.16
0.20
0.24
0.28
Pin, INPUT POWER (WATTS)
MSC0891.PDF 11-03-98
MS4080
+Vdc
BIAS
+
-
C 10
L3
L4
C 11
+
-
+28Vdc
C6
C7
C8
C9
R1
RF
INPUT
L1
C1
L2
D.U.T.
L5
R2
L6
C5
RF
OUTPUT
C2
C3
C4
R1
R2
C1
C2
C3
C4
C5
C6
C7
C8
68 Ohm, 1/2 Watt
10K Ohm, 1/2 Watt
ARCO, #463 20pF - 180pF Variable Capacitor
ARCO, #461 5pF - 30pF Variable Capacitor
ARCO, #422 7pF - 40pF Variable Capacitor
ARCO, #461 5pF - 30pF Variable Capacitor
ARCO, #463 20pF - 180pF Variable Capacitor
100pF, Chip Capacitor
UNELCO, 100pF Chip Capacitor
UNELCO, 100pF Chip Capacitor
C9
C11
C12
L1
L2
L3
L4
L5
L6
100pF, Chip Capacitor
10uF, 63V Electrolytic Capacitor
10uF, 63V Electrolytic Capacitor
#20 AWG, 3 Turns, 0.25" ID, 50nH
#20 AWG, 6 Turns, 0.25" ID,On R1, 206nH
Fiar-Rite P/N 2943666661
Fair-Rite P/N 2943666661
#20 AWG, 6 Turns, 0.25" ID, On R2, 206nH
#20 AWG, 1.5 Turns, 0.25" ID, 25nH
MS4080 150MHz Test Circuit
MSC0891.PDF 11-03-98
MS4080
PACKAGE MECHANICAL DATA
MSC0891.PDF 11-03-98
