HMC637A
v01.0715
GaAs MMIC 1 WATT
POWER AMPLIFIER DC - 6 GHz
Typical Applications
Features
The HMC637A is ideal for:
• Telecom Infrastructure
• Microwave Radio & VSAT
• Military & Space
P1dB Output Power: +30.5 dBm
Gain: 14 dB
Output IP3: +41 dBm
Bias Supplies: +12V, +6V, -1V
50 Ohm Matched Input/Output
Die Size: 2.98 x 2.48 x 0.1 mm
• Test Instrumentation
• Fiber Optics
Functional Diagram
General Description
The HMC637A is a GaAs MMIC MESFET Distributed
Power Amplifier die which operates between DC and
6 GHz. The amplifier provides 14 dB of gain,
+41 dBm output IP3 and +30.5 dBm of output power
at 1 dB gain compression while requiring 400mA
from a +12V supply. Gain flatness is excellent at 0.5
dB from DC to 6 GHz making the HMC637A ideal for
EW, ECM, Radar and test equipment applications.
The HMC637A amplifier I/Os are internally matched
to 50 Ohms facilitating integration into Mutli-Chip-
Modules (MCMs). All data is taken with the chip
connected via two 0.025mm (1 mil) wire bonds of
minimal length 0.31 mm (12 mils).
Electrical Specifications, TA = +25° C, Vdd= +12V, Vgg2= +6V, Idd= 400mA[1]
Parameter
Frequency
DC - 6.0 GHz
DC - 6.0 GHz
DC - 6.0 GHz
DC - 6.0 GHz
DC - 6.0 GHz
DC - 6.0 GHz
DC - 6.0 GHz
Min.
11
Typ.
14
Max.
Units
dB
Gain
Gain Flatness
0.5
dB
Gain Variation Over Temperature
Input Return Loss
0.008
14
dB/ °C
dB
Output Return Loss
18
dB
Output Power for 1 dB Compression (P1dB)
Saturated Output Power (Psat)
30.5
31.5
dBm
dBm
[2]
DC - 6.0 GHz
43
dBm
Output Third Order Intercept (IP3)
DC - 2 GHz
2.0 - 6.0 GHz
12
4
dB
dB
Noise Figure
Supply Current (Idd)
400
mA
[1]
Adjust Vgg1 between -2V to 0V to achieve Idd= 400mA typical.
Two-Tone Output Power = 0dBm Per Tone , 1 MHz Spacing.
[2]
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
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rights of third parties that may result from its use. Specifications subject to change without notice. No
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1
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