Preliminary
NGA-486 DC-5 GHz Cascadable MMIC Amplifier
S
21
vs. Frequency
S
11
vs. Frequency
18
15
S
21
(dB)
12
9
6
3
0
0
1
V
D
= 4.8 V, I
D
= 80 mA
-5
V
D
= 4.8 V, I
D
= 80 mA
T
L
+25°C
-40°C
+85°C
-10
S
11
(dB)
-15
-20
-25
-30
-35
+25°C
-40°C
+85°C
T
L
0
1
2
3
4
Frequency (GHz)
5
2
3
4
Frequency (GHz)
5
6
6
-5
-10
S
12
(dB)
-15
-20
-25
-30
0
1
V
D
= 4.8 V, I
D
= 80 mA
S
12
vs. Frequency
-5
V
D
= 4.8 V, I
D
= 80 mA
S
22
vs. Frequency
T
L
+25°C
-40°C
+85°C
-10
S
22
(dB)
-15
-20
-25
-30
-35
+25°C
-40°C
+85°C
T
L
0
1
2
3
4
Frequency (GHz)
5
2
3
4
Frequency (GHz)
5
6
6
V
D
vs. I
D
over Temperature for fixed
V
S
= 8 V, R
BIAS
= 39 Ohms *
95
90
V
D
(Volts)
5.4
5.2
+85°C
+25°C
V
D
vs. Temperature for Constant I
D
= 80 mA
85
I
D
(mA)
80
5.0
4.8
4.6
4.4
-40°C
75
70
65
4.6
4.7
4.8
V
D
(Volts)
4.9
5.0
-40
-15
10
35
Temperature (°C)
60
85
* Note: In the applications circuit on page 4, R
BIAS
compensates for voltage and current variation over temperature.
726 Palomar Ave., Sunnyvale, CA 94085
Phone: (800) SMI-MMIC
3
http://www.stanfordmicro.com
EDS-101104 Rev. D
STANFORD [ STANFORD MICRODEVICES ]
