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Typical Applications
The HMC1126 is ideal for:
• Test Instrumentation
• Microwave Radio & VSAT
• Military & Space
• Telecom Infrastructure
• Fiber Optics
Functional Diagram
HMC1126
GaAs pHEMT MMIC
POWER AMPLIFIER, 2 - 50 GHz
Features
P1dB Output Power: 17.5 dBm
Psat Output Power: 21 dBm
Gain: 11 dB
Output IP3: 28 dBm
Supply Voltage: +5V @ 65 mA
50 Ohm Matched Input/Output
Die Size: 2.3 x 1.45 x 0.1 mm
General Description
The HMC1126 is a GaAs pHEMT MMIC Distrib-
uted Power Amplifier which operates between 2
and 50 GHz. The amplifier provides 11 dB of gain,
28 dBm output IP3 and +17.5 dBm of output power at
1 dB gain compression while requiring 65 mA from
a +5 V supply. The HMC1126 amplifier I/Os are
internally matched to 50 Ohms facilitating integra-
tion into Multi-Chip-Modules (MCMs). All data is
taken with the chip connected via two 0.025 mm
(1 mil) wire bonds of minimal length 0.31 mm (12 mils).
Electrical Specifications, TA = +25° C, Vdd = +5V, Vgg2 = +1.4V, Idd = 65 mA [1]
Parameter
Frequency Range
Gain
Gain Variation Over Temperature
Input Return Loss
Output Return Loss
1 dB Compression (P1dB)
Saturated Output Power (Psat)
Output Third Order Intercept (IP3)
Noise Figure
Supply Current
Min.
8
14.5
Typ.
2 - 10
11
.002
12
14
17.5
21
31
4.5
65
Max.
Min.
8
14.5
Typ.
10 - 26
10.5
.005
14
20
17.5
21
28
4
65
Max.
Min.
8
13
Typ.
26 - 40
11
.005
20
18
16
20.5
28
4
65
Max.
Min.
8
10
Typ.
40 - 50
10.5
.009
12
12
13
18
24
5
65
Max.
Units
GHz
dB
dB/°C
dB
dB
dBm
dBm
dBm
dB
mA
[1] Adjust Vgg between -2 to 0V to achieve Idd = 65 mA typical.
[2] Measurement taken at Pout / tone = 0 dBm.
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
1
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
v00.1114
HMC1126
GaAs pHEMT MMIC
POWER AMPLIFIER, 2 - 50 GHz
Gain & Return Loss
20
10
0
-10
-20
-30
-40
0
5 10 15 20 25 30 35 40 45 50 55
FREQUENCY (GHz)
S21 S11 S22
Gain vs. Temperature
16
14
12
10
8
6
4
0 5 10 15 20 25 30 35 40 45 50
FREQUENCY (GHz)
+25C
+85C
-55C
Input Return Loss vs. Temperature
0
-10
-20
-30
-40
0
5 10 15 20 25 30 35 40 45 50
FREQUENCY (GHz)
+25 C
+85 C
-55 C
Output Return Loss vs. Temperature
0
-10
-20
-30
-40
0
5 10 15 20 25 30 35 40 45 50
FREQUENCY (GHz)
+25 C
+85 C
-55 C
Gain vs. Vdd [1]
18
Gain vs. Idd [2]
18
16 16
14 14
12 12
10 10
88
6
0 5 10 15 20 25 30 35 40 45 50
FREQUENCY (GHz)
+4V +6V +8V
+5V +7V
6
0 5 10 15 20 25 30 35 40 45 50
FREQUENCY (GHz)
65 mA
80 mA
95 mA
105 mA
[1] For Vdd= +4V, Vgg2=+1.4V, for Vdd= +5V, Vgg2= +1.4V, for Vdd= +6V Vgg2= +2V, for Vdd= +7 Vgg2= +3V, for Vdd=+8V Vgg2= +3.6V
[2] Vdd= +5V, Vgg2= +1.4V.
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
2
v00.1114
HMC1126
GaAs pHEMT MMIC
POWER AMPLIFIER, 2 - 50 GHz
P1dB vs. Temperature
25
23
21
19
17
15
13
11
9
7
5
2
6 10 14 18 22 26 30 34 38 42 46 50
FREQUENCY (GHz)
+25 C
+85 C
-55 C
Psat vs. Temperature
25
23
21
19
17
15
13
11
9
7
5
2
6 10 14 18 22 26 30 34 38 42 46 50
FREQUENCY (GHz)
+25 C
+85 C
-55 C
P1dB vs. Supply Voltage [1]
25
23
21
19
17
15
13
11
9
7
5
2
6 10 14 18 22 26 30 34 38 42 46 50
FREQUENCY (GHz)
+4V +6V +8V
+5V +7V
Psat vs. Supply Voltage [1]
25
23
21
19
17
15
13
11
9
7
5
2
6 10 14 18 22 26 30 34 38 42 46 50
FREQUENCY (GHz)
+4V +6V +8V
+5V +7V
P1dB vs. Supply Current [2]
25
23
21
19
17
15
13
11
9
7
5
2
6 10 14 18 22 26 30 34 38 42 46 50
FREQUENCY (GHz)
65 mA
80 mA
95 mA
105 mA
Psat vs. Supply Current [2]
25
23
21
19
17
15
13
11
9
7
5
2
6 10 14 18 22 26 30 34 38 42 46 50
FREQUENCY (GHz)
65 mA
80 mA
95 mA
105 mA
[1] For Vdd= +4V, Vgg2=+1.4V, for Vdd= +5V, Vgg2= +1.4V, for Vdd= +6V Vgg2= +2V, for Vdd= +7 Vgg2= +3V, for Vdd=+8V Vgg2= +3.6V
[2] Vdd= +5V, Vgg2= +1.4V.
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
3
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
