Document
AMPLIFIERS - LOW NOISE - SMT
v02.0514
Typical Applications
This HMC772LC4 is ideal for: • Wideband Communication Systems • Surveillance Systems • Point-to-Point Radios • Point-to-Multi-Point Radios • Military & Space • Test Instrumentation
Functional Diagram
HMC772LC4
GaAs HEMT MMIC LOW NOISE AMPLIFIER, 2 - 12 GHz
Features
Noise Figure: 1.8 dB Gain: 15 dB Output IP3: +25 dBm P1dB Output Power: +13 dBm 50 Ohm Matched Input/Output Supply Voltage: +4V @ 45 mA 24 Lead Ceramic 4x4mm SMT Package: 16mm²
General Description
The HMC772LC4 is a GaAs MMIC HEMT Low Noise Wideband Amplifier which operates between 2 and 12 GHz. The amplifier provides 15 dB of gain, 1.8 dB noise figure up to 12 GHz and output IP3 of +25 dBm, while requiring only 45 mA from a +4V supply voltage. The Psat output power of up to +15 dBm enables the LNA to function as a LO driver for many of HIttite’s balanced, I/Q or image reject mixers. The HMC772LC4 also features I/Os that are DC blocked and internally matched to 50 Ohms, making it ideal for SMT based high capacity microwave radio applications. The HMC772LC4 is housed in a RoHS compliant 4x4 mm QFN leadless ceramic package.
Electrical Specifications, TA = +25° C, Vdd= +4V, Idd = 45 mA*
Parameter
Min.
Typ.
Frequency Range
2 - 12
Gain
14
15
Gain Variation over Temperature
0.01
Noise Figure
1.8
Input Return Loss
15
Output Return Loss
15
Output Power for 1 dB Compression
13
Output Third Order Intercept (IP3)
25
Supply Current (Idd) (Vdd = 4V, Vgg = -0.2V Typ.)*
45
* Adjust Vgg between -1 to 0.3V to achieve Idd = 45mA typical.
Max. 2.5
Units GHz dB dB / °C dB dB dB dBm dBm mA
1
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AMPLIFIERS - LOW NOISE - SMT
v02.0514
Gain vs. Temperature
20
18
+25 C +85 C
- 40 C
16
GAIN (dB)
14
12
10
1
3
5
7
9
11
13
15
FREQUENCY (GHz)
Output Return Loss vs. Temperature
0
-5
+25 C +85 C
- 40 C
-10
RETURN LOSS (dB)
-15
-20
-25
-30
1
3
5
7
9
11
13
15
FREQUENCY (GHz)
Output P1dB vs. Temperature
18
16
14
P1dB (dBm)
12
10
+25 C
+85 C
8
- 40 C
6
1
3
5
7
9
11
13
15
FREQUENCY (GHz)
HMC772LC4
GaAs HEMT MMIC LOW NOISE AMPLIFIER, 2 - 12 GHz
Noise Figure vs. Temperature.