HMC635LC4
v01.0514
GaAs PHEMT MMIC DRIVER
AMPLIFIER, 18 - 40 GHz
Typical Applications
The HMC635LC4 is ideal for:
• Point-to-Point Radios
Features
Gain: 18.5 dB [2]
P1dB: +22 dBm [2]
• Point-to-Multi-Point Radios & VSAT
• LO Driver for Mixers
Output IP3: +27 dBm
Saturated Power: +23.5 dBm @ 15% PAE [2]
Supply Voltage: +5V @ 280 mA
50 Ohm Matched Input/Output
24 Lead Ceramic 4x4mm SMT Package: 16mm2
• Military & Space
Functional Diagram
General Description
The HMC635LC4 is a GaAs PHEMT MMIC Driver
Amplifier die which operates between 18 and 40
GHz. The amplifier provides 18.5 dB of gain, +27
dBm Output IP3, and +22 dBm of output power at 1
dB gain compression, while requiring 280 mA from a
+5V supply. Ideal as a driver amplifier for microwave
radio applications, or as an LO driver for mixers
operating between 18 and 40 GHz, the HMC635LC4
is capable of providing up to +23.5 dBm of saturated
output power at 15% PAE. The amplifier’s I/Os are DC
blocked and internally matched to 50 Ohms making it
ideal for integration into Multi-Chip-Modules (MCMs).
Electrical Specifications
TA = +25° C, Vdd= Vdd1, 2, 3, 4 = +5V, Idd= Idd1 + Idd2 + Idd3 + Idd4 = 280mA [1]
Parameter
Min.
Typ.
18 - 36
18.5
0.045
13
Max.
Min.
Typ.
36 - 40
17.5
0.045
7
Max.
0.06
Units
GHz
dB
Frequency Range
Gain [2]
15
15
Gain Variation Over Temperature
Input Return Loss
0.06
dB/ °C
dB
Output Return Loss
10
7
dB
Output Power for 1 dB Compression (P1dB) [2]
Saturated Output Power (Psat) [2]
Output Third Order Intercept (IP3)
Noise Figure [2]
19
22
22
16
21
21
dBm
dBm
dBm
dB
23.5
27
21.5
26
7
7
Total Supply Current (Idd1 + Idd2 + Idd3 + Idd4)
280
280
mA
[1] Adjust Vgg1 = Vgg2 between -2 to 0V to achieve Idd= 280 mA Typical.
[2] Board loss subtracted out for gain, power and noise figure measurements.
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