HMC635LC4
v02.0218
AMPLIFIERS - DRIVER & GAIN BLOCK - SMT
GaAs PHEMT MMIC DRIVER
AMPLIFIER, 18 - 40 GHz
Typical Applications
Features
The HMC635LC4 is ideal for:
Gain: 18.5 dB [2]
• Point-to-Point Radios
P1dB: +22 dBm [2]
• Point-to-Multi-Point Radios & VSAT
Output IP3: +27 dBm
• LO Driver for Mixers
Saturated Power: +23.5 dBm @ 15% PAE [2]
• Military & Space
Supply Voltage: +5V @ 280 mA
50 Ohm Matched Input/Output
24 Lead Ceramic 4x4mm SMT Package: 16mm2
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
Parameter
Min.
Frequency Range
Typ.
Max.
Min.
18 - 36
Gain [2]
15
Gain Variation Over Temperature
18.5
0.045
15
0.06
Typ.
[1]
Max.
Units
36 - 40
GHz
17.5
dB
0.045
0.06
dB/ °C
Input Return Loss
13
7
dB
Output Return Loss
10
7
dB
Output Power for 1 dB Compression (P1dB)
[2]
19
Saturated Output Power (Psat) [2]
Output Third Order Intercept (IP3)
Noise Figure
[2]
Total Supply Current (Idd1 + Idd2 + Idd3 + Idd4)
22
16
23.5
22
27
21
21
dBm
21.5
dBm
26
dBm
7
7
dB
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.
1
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
HMC635LC4
v02.0218
GaAs PHEMT MMIC DRIVER
AMPLIFIER, 18 - 40 GHz
25
25
15
20
S21
S11
S22
5
-5
15
+25C
- 40C
10
5
-15
0
-25
10
15
20
25
30
35
40
45
16
50
21
Input Return Loss vs. Temperature
31
36
41
Output Return Loss vs. Temperature
0
0
+25C
- 40C
-5
+25C
- 40C
-5
RETURN LOSS (dB)
RETURN LOSS (dB)
26
FREQUENCY (GHz)
FREQUENCY (GHz)
-10
-15
-10
-15
-20
-20
-25
16
21
26
31
36
41
16
21
FREQUENCY (GHz)
31
36
41
36
41
Psat vs. Temperature [1]
26
26
24
24
Psat (dBm)
P1dB (dBm)
P1dB vs. Temperature [1]
22
+25C
- 40C
20
26
FREQUENCY (GHz)
18
AMPLIFIERS - DRIVER & GAIN BLOCK - SMT
Gain vs. Temperature [1]
GAIN (dB)
RESPONSE (dB)
Broadband Gain & Return Loss [1]
22
+25C
- 40C
20
18
16
16
16
21
26
31
36
41
16
FREQUENCY (GHz)
21
26
31
FREQUENCY (GHz)
[1] Board loss subtracted out for gain, power and noise figure measurements.
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
2
HMC635LC4
v02.0218
GaAs PHEMT MMIC DRIVER
AMPLIFIER, 18 - 40 GHz
Power Compression @ 30 GHz [1]
Power Compression @ 40 GHz [1]
Pout (dBm), GAIN (dB), PAE (%)
Pout (dBm), GAIN (dB), PAE (%)
30
Pout (dBm)
Gain (dB)
PAE (%)
25
20
15
10
5
0
-15
-10
-5
0
5
Pout (dBm)
Gain (dB)
PAE (%)
25
20
15
10
5
0
-15
10
-10
INPUT POWER (dBm)
0
5
10
Noise Figure vs. Temperature [1]
40
15
36
+25 C
-40 C
NOISE FIGURE (dB)
12
+25 C
-40 C
32
28
24
9
6
3
20
16
0
16
21
26
31
36
41
16
21
FREQUENCY (GHz)
26
31
36
41
FREQUENCY (GHz)
Gain & Power vs.
Supply Voltage @ 30 GHz [1]
Reverse Isolation vs. Temperature
26
0
-10
24
22
ISOLATION (dB)
GAIN (dB), P1dB (dBm), Psat (dBm)
-5
INPUT POWER (dBm)
Output IP3 vs. Temperature
IP3 (dBm)
AMPLIFIERS - DRIVER & GAIN BLOCK - SMT
30
Gain
P1dB
Psat
20
+25C
- 40C
-20
-30
-40
-50
18
-60
16
4.5
-70
4.7
4.9
5.1
5.3
5.5
16
Vdd (V)
21
26
31
36
41
FREQUENCY (GHz)
[1] Board loss subtracted out for gain, power and noise figure measurements.
3
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
HMC635LC4
v02.0218
GaAs PHEMT MMIC DRIVER
AMPLIFIER, 18 - 40 GHz
Drain Bias Voltage (Vdd1, 2, 3, 4)
+5.5V
Vdd (V)
Idd (mA)
Gate Bias Voltage (Vgg1, Vgg2)
-3 to 0V
4.5
277
RF Input Power (RFIN)(Vdd = +5 Vdc)
15 dBm
5.0
280
Channel Temperature
175 °C
5.5
286
Continuous Pdiss (T= 70 °C)
(derate 15.1 mW/°C above 70 °C)
Note: Amplifier will operate over full voltage ranges shown above
1.575 W
Thermal Resistance
(channel to package base)
66.4 °C/W
Storage Temperature
-65 to +150 °C
Operating Temperature
-55 to +85 °C
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
24-Terminal Ceramic Leadless Chip Carrier [LCC]
(E-24-1)
Dimensions shown in millimeters.
Outline Drawing
PIN 1
INDICATOR
0.36
0.30
0.24
0.08
BSC
1
0.50
BSC
2.60
2.50 SQ
2.40
EXPOSED
PAD
13
TOP VIEW
1.00
0.90
0.80
SIDE VIEW
0.32
BSC
PIN 1
24
19
18
6
12
BOTTOM VIEW
7
2.50 REF
3.10 BSC
FOR PROPER CONNECTION OF
THE EXPOSED PAD, REFER TO
THE PIN CONFIGURATION AND
FUNCTION DESCRIPTIONS
SECTION OF THIS DATA SHEET.
PKG-004840
SEATING
PLANE
02-27-2017-B
4.05
3.90 SQ
3.75
24-Terminal Ceramic Leadless Chip Carrier [LCC]
(E-24-1)
Dimensions shown in millimeters.
AMPLIFIERS - DRIVER & GAIN BLOCK - SMT
Typical Supply Current vs. Vdd
Absolute Maximum Ratings
Package Information
Part Number
Package Body Material
Lead Finish
HMC635LC4
Alumina, White
Gold over Nickel
MSL Rating
MSL3
[1]
Package Marking [2]
H635
XXXX
[1] Max peak reflow temperature of 260 °C
[2] 4-Digit lot number XXXX
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
4
HMC635LC4
v02.0218
GaAs PHEMT MMIC DRIVER
AMPLIFIER, 18 - 40 GHz
AMPLIFIERS - DRIVER & GAIN BLOCK - SMT
Pin Descriptions
Pin Number
Function
Description
Interface Schematic
1, 2, 4 - 8, 10,
12 - 15, 17 - 19, 24,
Ground Paddle
GND
These pins and package bottom must be connected to
RF/DC ground
3
RFIN
This pad is AC coupled
and matched to 50 Ohms.
16
RFOUT
This pad is AC coupled
and matched to 50 Ohms.
9, 11
Vgg1, Vgg2
Gate control for amplifier, please follow “MMIC Amplifier
Biasing Procedure” application note. See assembly diagram for
required external components.
20 - 23
Vdd4 - Vdd1
Power Supply Voltage for the amplifier. See assembly
diagram for required external components.
Application Circuit
2
5
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
HMC635LC4
v02.0218
GaAs PHEMT MMIC DRIVER
AMPLIFIER, 18 - 40 GHz
List of Materials for Evaluation 122763
Item
Description
J1 - J2
2.92 mm PC Mount K-Connector
VD1 - VD4,
VGG1, VGG2
DC Pin
C1 - C6
100 pF Capacitor, 0402 Pkg.
C7 - C12
1000 pF Capacitor, 0603 Pkg.
C13 - C18
4.7 µF Capacitor, Tantalum, Case A
U1
HMC635LC4 Driver Amplifier
PCB [2]
122761 Evaluation PCB [3]
[1] Reference this number when ordering complete evaluation PCB
[1]
The circuit board used in the application should
use RF circuit design techniques. Signal lines should
have 50 Ohm impedance while the package ground
leads and exposed paddle should be connected
directly to the ground plane similar to that shown.
A sufficient number of via holes should be used
to connect the top and bottom ground planes. The
evaluation board should be mounted to an appropriate heat sink. The evaluation circuit board shown is
available from Analog Devices upon request.
AMPLIFIERS - DRIVER & GAIN BLOCK - SMT
Evaluation PCB
[2] Circuit Board Material: Rogers 4350 or Arlon 25FR
[3] Due to the very high frequency operation of this product
a custom LC4 PCB footprint and solder stencil are required
for this design. Performance shown in this data sheet
was produced using this custom footprint. DO NOT USE
Hittite’s standard LC4 footprint. Please contact Applications
for details.
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
6
