
LMA246
L
OW
N
OISE
PHEMT
MMIC
Phone:
(408) 988-1845
Fax:
(408) 970-9950
http://
www.filss.com
Revised:
12/05/00
Email:
sales@filss.com
FEATURES
9 GHz to 14 GHz Frequency Band
2.2 dB Noise Figure
25.5 dB Gain
19 dBm Output Power at Saturation
+6 V Single Bias Supply
DESCRIPTION AND APPLICATIONS
The Filtronic Solid State LMA246 is a high gain low noise PHEMT amplifier that operates from 9 to
14GHz. Reactively matched 3-stage amplifier provides 28dB nominal gain with 2dB typical noise
figure and 1-dB gain compression power output of +17dBm that can be used as a pre-driver
amplifier for phased array radar as well as commercial communications applications. Ground is
provided to the circuitry through vias to the backside metallization.
ELECTRICAL SPECIFICATIONS @ T
Ambient
= 25
°
C
(V
DD
= +6.0V, Z
IN
= Z
OUT
= 50
)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
Frequency Band
Small Signal Gain
F
9
24
14
GHz
dB
S
21
I
DSS
S
21
NF
P-1dB
R
S
= 12/12/5
at 50% I
DSS
R
S
= 0/0/0
25.5
Saturated Drain Current
120
260
360
mA
Small Signal Gain Flatness
±
0.5
2.2
17
±
1.0
3.0
dB
Noise Figure
50% I
DSS
dB
dBm
Power at 1-dB Compression
R
S
= 12/12/3
at 60% I
DSS
Power at Saturation
Input Return Loss
Output Return Loss
Reverse Isolation
P
SAT
S
11
S
22
S
12
19
dBm
dB
dB
dB
-14
-12
-60