Datasheet
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MAX2090
50MHz to 1000MHz Analog VGA and Power
Detector with Optional AGC Loop
Typical Operating Characteristics
(Typical Application Circuit with analog attenuator set to minimum attenuation (V
PLVLSET
= 2.5V), V
CC
= 5.5V, T
C
= +25NC, f
RF_IN
=
350MHz, P
RF_IN
= -25dBm, R
SOURCE
= R
LOAD
= 50I, CTRL1 = 0, CTRL2 = 1, ALM_THRES = ALM = open, unless otherwise noted.)
SUPPLY CURRENT vs. V
CC
MAX2090 toc01
V
CC
(V)
SUPPLY CURRENT (mA)
5.655.505.355.205.054.90
75
80
85
90
70
4.75 5.80
T
C
= -40°C
T
C
= +95°C
T
C
= +25°C
GAIN vs. RF FREQUENCY
MAX2090 toc02
RF FREQUENCY (MHz)
GAIN (dB)
23
24
25
26
27
22
50 1050
850650450250
T
C
= +95°C
T
C
= +25°C
T
C
= -40°C
GAIN vs. RF FREQUENCY
MAX2090 toc03
RF FREQUENCY (MHz)
GAIN (dB)
23
24
25
26
27
22
50 1050
850650450250
V
CC
= 4.75V, 5.00V, 5.50V, 5.80V
GAIN OVER PLVLSET SETTING
vs. RF FREQUENCY
MAX2090 toc04
RF FREQUENCY (MHz)
GAIN (dB)
-10
0
10
20
30
-20
50 1050
850650450250
0V
1.0V
1.5V
2.5V
2.0V
0.5V
GAIN vs. ATTENUATOR SETTING
MAX2090 toc05
V
PLVLSET
(V)
GAIN (dB)
-10
0
10
20
30
-20
0 2.5
2.01.51.00.5
1000MHz
50MHz
350MHz, 500MHz
GAIN vs. ATTENUATOR SETTING
MAX2090 toc06
V
PLVLSET
(V)
GAIN (dB)
-10
0
10
20
30
-20
0 2.5
2.01.51.00.5
T
C
= -40°C, +25°C, +95°C
f
RF
= 350MHz