LINEAR & POWER AMPLIFIERS - SMT
1
HMC498LC4
v05.0418
GaAs PHEMT MEDIUM
POWER AMPLIFIER, 17 - 24 GHz
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
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. Specications 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.
General Description
Features
Functional Diagram
The HMC498LC4 is a high dynamic range GaAs
PHEMT MMIC Medium Power Amplier housed in a
leadless “Pb free” SMT package. Operating from 17
to 24 GHz, the amplier provides 22 dB of gain, +26
dBm of saturated power and 23% PAE from a +5V
supply voltage. Noise gure is 4 dB while output IP3 is
+36 dBm typical enabling the HMC498LC4 to function
as a low noise front end as well as a driver amplier.
The RF I/Os are DC blocked and matched to 50 Ohms
for ease of use. The HMC498LC4 eliminates the
need for wire bonding, allowing use of surface mount
manufacturing techniques.
Output IP3: +36 dBm
Saturated Power: +26 dBm @ 23% PAE
Gain: 22 dB
+5V @ 250 mA Supply
50 Ohm Matched Input/Output
RoHS Compliant 4x4 mm SMT Package
Electrical Specications, TA = +25° C, Vdd1, 2, 3 = 5V, Idd = 250 mA*
Typical Applications
The HMC498LC4 is ideal for use as a LNA or Driver
amplier for:
• Point-to-Point Radios
• Point-to-Multi-Point Radios & VSAT
• Test Equipment & Sensors
• Military End-Use
Parameter Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Units
Frequency Range 17 - 19 19 - 23 23 - 24 GHz
Gain 18 22 20 22.5 18 21 dB
Gain Variation Over Temperature 0.02 0.03 0.02 0.03 0.02 0.03 dB/ °C
Input Return Loss 13 13 10 dB
Output Return Loss 15 15 20 dB
Output Power for 1 dB Compression (P1dB) 22 25 21.5 24.5 22.5 25.5 dBm
Saturated Output Power (Psat) 26.5 25.5 26.5 dBm
Output Third Order Intercept (IP3) 35 36 35.5 dBm
Noise Figure 4.0 4.0 4.5 dB
Supply Current (Idd)(Vdd = +5V, Vgg = -0.8V
Typ.) 250 250 250 mA
* Adjust Vgg between -2 to 0V to achieve Idd = 250 mA typical.
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
LINEAR & POWER AMPLIFIERS - SMT
2
HMC498LC4
v05.0418
GaAs PHEMT MEDIUM
POWER AMPLIFIER, 17 - 24 GHz
Input Return Loss vs. Temperature Output Return Loss vs. Temperature
Broadband Gain & Return Loss Gain vs. Temperature
P1dB vs. Temperature Psat vs. Temperature
-25
-15
-5
5
15
25
12 14 16 18 20 22 24 26 28
S21
S11
S22
RESPONSE (dB)
FREQUENCY (GHz)
10
14
18
22
26
16 17 18 19 20 21 22 23 24 25
+25 C
+85 C
-40 C
GAIN (dB)
FREQUENCY (GHz)
-20
-15
-10
-5
0
16 17 18 19 20 21 22 23 24 25
+25 C
+85 C
-40 C
RETURN LOSS (dB)
FREQUENCY (GHz)
-25
-20
-15
-10
-5
0
16 17 18 19 20 21 22 23 24 25
+25 C
+85 C
-40 C
RETURN LOSS (dB)
FREQUENCY (GHz)
10
14
18
22
26
30
16 17 18 19 20 21 22 23 24 25
+25 C
+85 C
-40 C
P1dB (dBm)
FREQUENCY (GHz)
10
14
18
22
26
30
16 17 18 19 20 21 22 23 24 25
+25 C
+85 C
-40 C
Psat (dBm)
FREQUENCY (GHz)
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
LINEAR & POWER AMPLIFIERS - SMT
3
HMC498LC4
v05.0418
GaAs PHEMT MEDIUM
POWER AMPLIFIER, 17 - 24 GHz
Power Compression @ 18 GHz
Output IP3 vs. Temperature Noise Figure vs. Temperature
Gain, Power & OIP3
vs. Supply Voltage @ 23 GHz Reverse Isolation vs. Temperature
Power Compression @ 23 GHz
20
24
28
32
36
40
16 17 18 19 20 21 22 23 24 25
+25 C
+85 C
-40 C
IP3 (dBm)
FREQUENCY (GHz)
20
24
28
32
36
40
4.5 5 5.5
Gain
P1dB
Psat
IP3
Gain (dB), P1dB (dBm), Psat (dBm), IP3 (dBm)
Vdd Supply Voltage (Vdc)
-70
-60
-50
-40
-30
-20
-10
0
16 17 18 19 20 21 22 23 24 25
+25 C
+85 C
-40 C
ISOLATION (dB)
FREQUENCY (GHz)
0
5
10
15
20
25
30
-10 -8 -6 -4 -2 0 2 4 6 8 10
Pout (dBm)
Gain (dB)
PAE (%)
Pout (dBm), GAIN (dB), PAE (%)
INPUT POWER (dBm)
0
5
10
15
20
25
30
-10 -8 -6 -4 -2 0 2 4 6 8 10
Pout (dBm)
Gain (dB)
PAE (%)
Pout (dBm), GAIN (dB), PAE (%)
INPUT POWER (dBm)
0
1
2
3
4
5
6
7
8
9
10
16 17 18 19 20 21 22 23 24 25
+25 C
+85 C
-40 C
NOISE FIGURE (dB)
FREQUENCY (GHz)
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
LINEAR & POWER AMPLIFIERS - SMT
4
HMC498LC4
v05.0418
GaAs PHEMT MEDIUM
POWER AMPLIFIER, 17 - 24 GHz
Outline Drawing
Absolute Maximum Ratings
Drain Bias Voltage (Vdd1, Vdd2, Vdd3) +5.5 Vdc
Gate Bias Voltage (Vgg) -4.0 to 0 Vdc
RF Input Power (RFIN)(Vdd = +5Vdc) +10 dBm
Channel Temperature 175 °C
Continuous Pdiss (T= 85 °C)
(derate 18 mW/°C above 85 °C) 1.62 W
Thermal Resistance
(channel to ground paddle) 55.6 °C/W
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
ESD Sensitivity (HBM) Class 1A
Vdd (Vdc) Idd (mA)
+4.5 239
+5.0 250
+5.5 262
Typical Supply Current vs. Vdd
Note: Amplier will operate over full voltage ranges shown
above. Vgg adjusted to achieve Idd= 250 mA at +5V.
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Package Information
Part Number Package Body Material Lead Finish MSL Rating Package Marking [2]
HMC498LC4 Alumina, White Gold over Nickel MSL3 [1] H498
XXXX
[1] Max peak reow temperature of 260 °C
[2] 4-Digit lot number XXXX
12
0.50
BSC
2.50 REF
24-Terminal Ceramic Leadless Chip Carrier [LCC]
(E-24-1)
Dimensions shown in millimeters.
BOTTOM VIEW
TOP VIEW
1
24
7
13
18
19
6
02-27-2017-B
0.36
0.30
0.24
EXPOSED
PAD
PKG-004840
PIN 1
INDICATOR
4.05
3.90 SQ
3.75
3.10 BSC
FOR PROPER CONNECTION OF
THE EXPOSED PAD, REFER TO
THE PIN CONFIGURATION AND
FUNCTION DESCRIPTIONS
SECTION OF THIS DATA SHEET.
2.60
2.50 SQ
2.40
PIN 1
0.32
BSC
0.08
BSC
SIDE VIEW
1.00
0.90
0.80
SEATING
PLANE
24-Terminal Ceramic Leadless Chip Carrier [LCC]
(E-24-1)
Dimensions shown in millimeters.
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
LINEAR & POWER AMPLIFIERS - SMT
5
HMC498LC4
v05.0418
GaAs PHEMT MEDIUM
POWER AMPLIFIER, 17 - 24 GHz
Pin Descriptions
Application Circuit
Pin Number Function Description Interface Schematic
1, 5 - 8, 10 - 14,
18, 20, 22, 24 N/C
These pins are not connected internally; however, all data
shown herein was measured with these pins connected to
RF/DC ground externally.
2, 4, 15, 17 GND Package bottom has an exposed metal paddle that must
also be connected to RF/DC ground.
3RFIN This pin is AC coupled
and matched to 50 Ohms.
9Vgg
Gate control for amplier. Adjust to achieve Id of 250 mA.
Please follow “MMIC Amplier Biasing Procedure”
Application Note. External bypass capacitors of 100 pF,
1000 pF and 2.2 µF are required.
16 RFOUT This pin is AC coupled
and matched to 50 Ohms.
23, 21, 19 Vdd1, Vdd2, Vdd3 Power Supply Voltage for the amplier. External bypass
capacitors of 100 pF, 1000pF, and 2.2 µF are required.
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
LINEAR & POWER AMPLIFIERS - SMT
6
HMC498LC4
v05.0418
GaAs PHEMT MEDIUM
POWER AMPLIFIER, 17 - 24 GHz
Evaluation PCB
Item Description
J1, J2 2.92 mm PC mount K-connector
J3 - J8 DC Pin
C1 - C4 100 pF capacitor, 0402 pkg.
C5 - C8 1,000 pF Capacitor, 0603 pkg.
C9 - C12 2.2µF Capacitor, Tantalum
U1 HMC498LC4 Amplier
PCB [2] 108535 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350.
List of Materials for Evaluation PCB 108537 [1]
The circuit board used in this 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 appro-
priate heat sink. The evaluation circuit board shown
is available from Analog Devices, upon request.
