Datasheet

MAX2640/MAX2641
300MHz to 2500MHz SiGe
Ultra-Low-Noise Amplifiers
4 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
CC
= +3V, P
RFIN
= -34dBm, Typical Operating Circuits, T
A
= +25°C, unless otherwise noted.)
-60
-30
-40
-50
-20
-10
0
1800 18801840 1920 1960 2000
MAX2641 MATCHED AT 1900MHz
REVERSE ISOLATION vs. FREQUENCY
MAX2640-10
FREQUENCY (MHz)
REVERSE ISOLATION (dB)
-16
-13
-14
-15
-12
-11
-10
-9
-8
-7
-6
1800 1850 1900 1950 2000
MAX2641 MATCHED AT 1900MHz
INPUT RETURN LOSS AND
OUTPUT RETURN LOSS vs. FREQUENCY
MAX2640-09
FREQUENCY (MHz)
RETURN LOSS (dB)
INPUT RETURN LOSS
OUTPUT RETURN LOSS
-16
-13
-14
-15
-12
-11
-10
-9
-8
-7
-6
800 850 900 950 1000
MAX2640 MATCHED AT 900MHz
INPUT RETURN LOSS AND
OUTPUT RETURN LOSS vs. FREQUENCY
MAX2640-04
FREQUENCY (MHz)
RETURN LOSS (dB)
INPUT RETURN LOSS
OUTPUT RETURN LOSS
12
13
15
14
16
1800 1840 1880 1920 1960 2000
MAX2641 MATCHED AT 1900MHz
GAIN vs. FREQUENCY
MAX2640-07
FREQUENCY (MHz)
GAIN (dB)
T
A
= -40°C
T
A
= +25°C
T
A
= +85°C
-60
-30
-40
-50
-20
-10
0
800 880840 920 960 1000
MAX2640 MATCHED AT 900MHz
REVERSE ISOLATION vs. FREQUENCY
MAX2640-05
FREQUENCY (MHz)
REVERSE ISOLATION (dB)
0
2
1
4
3
5
6
24356
MAX2641
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX2640-06
V
CC
(V)
I
CC
(mA)
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
0
1
2
3
1800 18801840 1920 1960 2000
MAX2641 MATCHED AT 1900MHz
NOISE FIGURE vs. FREQUENCY
MAX2640-08
FREQUENCY (MHz)
NOISE FIGURE (dB)
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C