DATA SHEET
0.5 TYP.
2.0 ±0.2
4
0.65 TYP.
3
2
1
2.0 ±0.2
2.0 ±0.2
G
1.9 ±0.2
1.6
4.0 ±0.2
0.125 ±0.05
1.5 MAX
0.4MAX
1. Source
2. Drain
3. Source
4. Gate
HETERO JUNCTION FIELD EFFECT TRANSISTOR
NE425S01
C to Ku BAND SUPER LOW NOISE AMPLIFIER
N-CHANNEL HJ-FET
DESCRIPTION
The NE425S01 is a Hetero Junction FET that utilizes the
hetero junction to create high mobility electrons. Its excellent
low noise and high associated gain make it suitable for DBS
and another commercial systems.
FEATURES
• Super Low Noise Figure & High Associated Gain
NF = 0.60 dB TYP., Ga = 12.0 dB TYP. at f = 12 GHz
• Gate Length : L
• Gate Width : Wg = 200 µm
g ≤ 0.20
µ
m
ORDERING INFORMATION
PART NUMBER SUPPLYING FORM MARKING
NE425S01-T1 Tape & reel 1000 pcs./reel G
NE425S01-T1B Tape & reel 4000 pcs./reel
ABSOLUTE MAXIMUM RATINGS (TA = 25 ˚C)
Drain to Source Voltage VDS 4.0 V
Gate to Source Voltage VGS –3.0 V
Drain Current I
Gate Current IG 100
Total Power Dissipation Ptot 165 mW
Channel Temperature T
Storage Temperature Tstg –65 to +125 ˚ C
D IDSS mA
ch 125 ˚ C
PACKAGE DIMENSIONS
(Unit: mm)
µ
A
Document No. P11161EJ3V0DS00 (3rd edition)
Date Published October 1996 N
Printed in Japan
RECOMMENDED OPERATING CONDITION (TA = 25 ˚C)
CHARACTERISTIC SYMBOL MIN. TYP. MAX. Unit
Drain to Source Voltage VDS 23V
Drain Current ID 10 20 mA
Input Power Pin 0 dBm
©
1996
NE425S01
ELECTRICAL CHARACTERISTICS (TA = 25 ˚C)
CHARACTERISTIC SYMBOL MIN. TYP. MAX. UNIT TEST CONDITIONS
Gate to Source Leak Current IGSO 0.5 10
Saturated Drain Current IDSS 20 60 90 mA VDS = 2 V, VGS = 0 V
Gate to Source Cutoff Voltage VGS(off) –0.2 –0.7 –2.0 V VDS = 2 V, ID = 100 µA
Transconductance gm 45 60 mS VDS = 2V, ID = 10 mA
Noise Figure NF 0.60 0.80 dB VDS = 2 V, ID = 10 mA, f = 12 GHz
Associated Gain Ga 10.5 12.0 dB
TYPICAL CHARACTERISTICS (TA = 25 ˚C)
µ
AVGS = –3 V
TOTAL POWER DISSIPATION vs.
AMBIENT TEMPERATURE
250
200
150
100
50
- Total Power Dissipation - mW
tot
P
0 50 100 150 200 250
T
A
- Ambient Temperature - ˚C
DRAIN CURRENT vs.
GATE TO SOURCE VOLTAGE
VDS = 2 V
60
DRAIN CURRENT vs.
DRAIN TO SOURCE VOLTAGE
100
80
60
40
- Drain Current - mA
D
I
20
0 3.01.5
V
DS
- Drain to Source Voltage - V
MAXIMUM AVAILABLE GAIN, FORWARD
INSERTION GAIN vs. FREQUENCY
24
20
MSG.
VGS = 0 V
–0.2 V
–0.4 V
–0.6 V
–0.8 V
VDS = 2 V
I
D
= 10 mA
40
- Drain Current - mA
20
D
I
0
–2.0 –1.0 0
V
GS
- Gate to Source Voltage - V
2
16
2
21S
|
12
- Forward Insertion Gain - dB
2
|
8
21S
MSG. - Maximum Stable Gain - dB
MAG. - Maximum Availabel Gain - dB
|S
4
1
|S
2 4 6 8 10 14 20 30
f - Frequency - GHz
MAG.
Gain Calculations
NE425S01
1 | | – | S | – | S |
|S |
MSG.
MAG.
21
=
12
|S |
|S |
21
=±
(K K –1)
12
|S |
2
+
K
=
∆
SS– SS11 22 21 12= ••
NOISE FIGURE, ASSOCIATED GAIN vs.
FREQUENCY
VDS = 2 V
D
= 10 mA
I
a
G
1.0
NF - Noise Figure - dB
0.5
NF
0
1302
4206 8 10 14
f - Frequency - GHz
222
∆
11 22
12 21
2 |S | |S |
24
20
16
12
- Associated Gain - dB
a
G
NF - Noise Figure - dB
8
4
NOISE FIGURE, ASSOCIATED GAIN vs.
DRAIN CURRENT
VDS = 2 V
f = 12 GHz
G
a
2.0
1.5
1.0
0.5
NF
ID - Drain Current - mA
14
13
12
11
10
- Associated Gain - dB
a
G
3020100
3
S-PARAMETERS
VDS = 2 V, ID = 10 mA
START 2 GHz, STOP 18 GHz, STEP 500 MHz
S
11
1.0
S
12
+90˚
NE425S01
Marker
4 GHz
1:
8 GHz
2:
12 GHz
3:
16 GHz
4:
18 GHz
5:
0.5 2.0
5
4
0 ∞
3
1
–0.5 –2.0
+135˚ +45˚
1
2
–1.0
S
+90˚
Rmax. = 1
21
2
+135˚
2
±180˚ 0
1
3
+45˚
4
5
–135˚ –45˚
–90˚
S
22
Rmax. = 0.2
1.0
0.5
5
2.0
4
±180˚
–135˚
–90˚
3
0
5
4
–45˚
0 ∞
–0.5
Rmax. = 5
3
4
–1.0
2
1
–2.0
Rmax. = 1