MICROWAVE CORPORATION
8 - 86
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
AMPLIFIERS - SMT
8
HMC318MS8G
GaAs MMIC LOW NOISE AMPLIFIER
with AGC, 5.0 - 6.0 GHz
v00.0900
General Description
Features
Functional Diagram
The HMC318MS8G is a surface mount low cost
C-band variable gain low noise amplifi er (VGLNA)
that serves the full UNII and HiperLAN bands.
The HMC318MS8G operates using a single posi-
tive supply that can be set between +3V or +5V.
When a control voltage of 0V to +3V is applied,
the gain of the amplifi er will decrease while main-
taining excellent return loss performance. A max-
imum gain of 9 dB is achieved when VCTL is set
to 0V and a minimum gain of -9 dB is achieved
when Vctl is set to +3V.
LNA with 18 dB Gain Control
+3V Operation
Low Noise Figure: 2.5 dB
No External Components
Ultra Small 8 Lead MSOP:
14.8mm
2
x 1mm High
Electrical Specifi cations,
T
A
= +25 C, Vdd = +3V
Typical Applications
The HMC318MS8G is ideal for:
UNII
HiperLAN
* Specifi cations refer to the maximum gain state (Vctl = 0V) unless otherwise noted.
Parameter*
Min.
Typ.
Max.
Units
Frequency Range
5.0 - 6.0
GHz
Gain
6
9
12
dB
Gain Variation over Temperature
0.03
0.04
dB/C
Gain Control Range
11
18
23
dB
Noise Figure
2.5
4.0
dB
Input Return Loss
6
12
dB
Output Return Loss
7
13
dB
Output Power for 1 dB Compression (P1dB)
-1
2
dBm
Output Third Order Intercept (OIP3)
10
13
dBm
Supply Current (Idd)
6
10
mA
MICROWAVE CORPORATION
8 - 87
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
AMPLIFIERS - SMT
8
-20
-15
-10
-5
0
5
10
15
4.5
5
5.5
6
6.5
S11
S21
S22
RESPONSE (dB)
FREQUENCY (GHz)
-15
-10
-5
0
5
10
15
4.5
5
5.5
6
6.5
GAIN (dB)
FREQUENCY (GHz)
0V
1.0V
1.4V
1.8V
3.0V
-15
-10
-5
0
5
10
15
4.5
5
5.5
6
6.5
+25C
+85C
-40C
GAIN (dB)
FREQUENCY (GHz)
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
4.5
5
5.5
6
6.5
+25 C
+85 C
-40 C
NOISE FIGURE (dB)
FREQUENCY (GHz)
-20
-15
-10
-5
0
4.5
5
5.5
6
6.5
+25C
+85C
-40C
INPUT RETURN LOSS (dB)
FREQUENCY (GHz)
-20
-15
-10
-5
0
4.5
5
5.5
6
6.5
+25C
+85C
-40C
OUTPUT RETURN LOSS (dB)
FREQUENCY (GHz)
HMC318MS8G
v00.0900
Gain & Return Loss @ Vctl = 0V
Gain vs. Temperature, Vctl = 0V
Input Return Loss vs.
Temperature, Vctl = 0V
Gain over Control Range
Noise Figure vs.
Temperature, Vctl = 0V
Output Return Loss vs.
Temperature, Vctl = 0V
GaAs MMIC LOW NOISE AMPLIFIER
with AGC, 5.0 - 6.0 GHz
MICROWAVE CORPORATION
8 - 88
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
AMPLIFIERS - SMT
8
HMC318MS8G
v00.0900
-12
-10
-8
-6
-4
-2
0
2
4
6
8
10
12
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0
Gain (dB)
Control Voltage (Vdc)
-20
-15
-10
-5
0
4.5
5
5.5
6
6.5
Vctl= 3.0V
Vctl= 1.8V
Vctl= 1.4V
Vctl= 0.8V
Vctl= 0V
Return Loss (dB)
FREQUENCY (GHz)
-20
-15
-10
-5
0
4.5
5
5.5
6
6.5
Vctl= 3.0V
Vctl= 1.8V
Vctl= 1.4V
Vctl= 0.8V
Vctl= 0V
Return Loss (dB)
FREQUENCY (GHz)
-50
-40
-30
-20
-10
0
4.5
5
5.5
6
6.5
+25C
+85C
-40C
REVERSE ISOLATION (dB)
FREQUENCY (GHz)
GaAs MMIC SUB-HARMONICALLY PUMPED MIXER 17 - 25 GHz
Input Return Loss over Control Range
Gain vs. Control Voltage @ 5.8 GHz
Output Return Loss over Control Range
Reverse Isolation vs.
Temperature, Vctl = 0V
Noise Figure and
OIP3 vs. Control Voltage
GaAs MMIC LOW NOISE AMPLIFIER
with AGC, 5.0 - 6.0 GHz
Frequency = 5.8 GHz
VCTL
Noise Figure (dB)
OIP3 (dBm)*
0V
2.5
13.0
1.4V
4.5
1.2
3.0V
10.5
-6.7
*Two-tone input power = -20 dBm per tone.
MICROWAVE CORPORATION
8 - 89
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
AMPLIFIERS - SMT
8
HMC318MS8G
v00.0900
Absolute Maximum Ratings
Outline Drawing
Gain Control
GaAs MMIC LOW NOISE AMPLIFIER
with AGC, 5.0 - 6.0 GHz
NOTES:
1. PACKAGE BODY MATERIAL: LOW STRESS INJECTION MOLDED
PLASTIC SILICA AND SILICON IMPREGNATED.
2. LEADFRAME MATERIAL: COPPER ALLOY
3. LEADFRAME PLATING: Sn/Pb SOLDER
4. DIMENSIONS ARE IN INCHES [MILLIMETERS].
5. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE.
6. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE.
7. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED
TO PCB RF GROUND.
Drain Bias Voltage (Vdd)
+7.0 Vdc
Control Voltage Range (Vctl)
-0.2 to Vdd
RF Input Power (RFin)(Vdd = +3.0 Vdc)
0 dBm
Channel Temperature
150 C
Continuous Pdiss (T = 85 C)
(derate 9.76 mW/C above 85 C)
0.634 W
Thermal Resistance
(channel to ground paddle)
102 C/W
Storage Temperature
-65 to +150 C
Operating Temperature
-40 to +85 C
Vctl (Vdc)
Gain State
Typical
Ictl (uA)
0
Maximum
25
Vdd
Minimum
25
MICROWAVE CORPORATION
8 - 90
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
AMPLIFIERS - SMT
8
The circuit board used in the fi nal 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 suffi cient number of via holes
should be used to connect the top and bottom ground
planes. The evaluation circuit board shown is available from
Hittite upon request.
Evaluation PCB
List of Material
HMC318MS8G
v00.0900
GaAs MMIC LOW NOISE AMPLIFIER
with AGC, 5.0 - 6.0 GHz
Item
Description
J1, J2
PC Mount SMA Connector
J3, J4
DC Pin
U1
HMC318MS8G Amplifi er
PCB*
Evaluation PCB 1.6" x 1.5"
*Circuit Board Material: Roger 4350
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