1000 pF
RF
Input
47 pF
100 pF
1000 pF
V
gs
1.2 nH
100 pF
V
ds
RF
Input Bias Tee
ICM Fixture
V
d
Ax
27 nH
27 nH
2.7 nH
RF
Output
47 pF
V
gs
Bias
Tee
Figure 1. MGA-725M4 Production Test Circuit.
MGA-725M4 Typical Performance
Frequency = 2.0 GHz, T
c
= 25°C, Z
o
= 50Ω, V
d
= 3V, I
d
= 20 mA unless stated otherwise. All data as measured in Figure 2
test system (input and output presented to 50Ω).
3.0
2.5
2.0
GAIN (dB)
NF (dB)
INPUT IP
3
(dB)
Ax
RF
Output
Figure 2. MGA-725M4 50Ω Test Circuit for S, Noise, and Power
Parameters.
18
16
14
12
10
8
6
2.7V
3.0V
3.3V
0
1
2
3
4
5
6
4
2
0
0
1
2
3
4
2.7V
3.0V
3.3V
5
6
14
12
10
8
6
4
2
0
2.7V
3.0V
3.3V
0
1
2
3
4
5
6
1.5
1.0
0.5
0
FREQUENCY (GHz)
FREQUENCY (GHz)
FREQUENCY (GHz)
Figure 3. Noise Figure vs. Frequency and
Voltage.
4
Figure 4. Gain vs. Frequency and Voltage.
Figure 5. Input Third Order Intercept Point
vs. Frequency and Voltage.
18
16
14
INPUT IP
3
(dBm)
18
16
3
GAIN (dB)
14
12
12
10
8
6
4
2
-40°C
+25°C
+85°C
0
1
2
3
4
5
6
NF (dB)
10
8
6
2
1
-40°C
+25°C
+85°C
0
0
1
2
3
4
5
6
FREQUENCY (GHz)
4
2
0
0
1
2
3
4
-40°C
+25°C
+85°C
5
6
0
FREQUENCY (GHz)
FREQUENCY (GHz)
Figure 6. Noise Figure vs. Frequency and
Temperature.
8
Input
Output
6
VSWR (LNA)
Figure 7. Gain vs. Frequency and Temperature.
Figure 8. Input Third Order Intercept Point
vs. Frequency and Temperature.
0
14
12
-1
10
VSWR (LNA)
INSERTION LOSS (dB)
8
6
4
2
Input
Output
0
1
2
3
4
5
6
-2
4
-3
2
-4
-5
0
1
2
3
4
-40°C
+25°C
+85°C
5
6
0
0
1
2
3
4
5
6
FREQUENCY (GHz)
0
FREQUENCY (GHz)
FREQUENCY (GHz)
Figure 9. LNA on (Switch off) VSWR vs.
Frequency.
Figure 10. LNA off (Switch on) VSWR vs.
Frequency.
Figure 11. Insertion Loss (Switch on) vs.
Frequency and Temperature.
3
AGILENT [ AGILENT TECHNOLOGIES, LTD. ]
