Manual
MAX2654/MAX2655/MAX2656
1575MHz/1900MHz Variable-IP3
Low-Noise Amplifiers
_______________________________________________________________________________________ 9
0
8
4
16
12
24
20
200 600 800400 1000 1200 1400 1600
MAX2656
SUPPLY CURRENT vs. R
BIAS
MAX2654 toc40
R
BIAS
(Ω)
SUPPLY CURRENT (mA)
HIGH-GAIN MODE
T
A
= +85°C
T
A
= -40°C
T
A
= +25°C
Typical Operating Characteristics (continued)
(P
IN
= -30dBm, input and output are terminated to 50Ω, V
CC
= +3V, high-gain and low-gain modes are applicable only to the MAX2656,
T
A
= +25°C, unless otherwise noted.)
0
8
4
16
12
24
20
200 600 800400 1000 1200 1400 1600
MAX2656
SUPPLY CURRENT vs. R
BIAS
MAX2654 toc41
R
BIAS
(Ω)
SUPPLY CURRENT (mA)
LOW-GAIN MODE
T
A
= +85°C
T
A
= -40°C
T
A
= +25°C
2.0
1.5
1.0
0.5
-40 20
-20
04060
MAX2656
INPUT LOGIC VOLTAGE vs. TEMPERATURE
MAX2654 toc42
TEMPERATURE (°C)
INPUT LOGIC VOLTAGE (V)
80
I
NPUT LOGIC HIGH AT V
RFOUT
INPUT LOGIC LOW AT V
RFOUT
-15
-11
-9
-13
-3
-7
-5
3
-1
1
5
200 600 800400 1000 1200 1400 1600
MAX2656
INPUT IP3 vs. R
BIAS
MAX2654 toc44
R
BIAS
(Ω)
INPUT IP3 (dBm)
T
A
= -40°C
T
A
= +85°C
f
1
= 1955MHz
f
2
= 1965MHz
P
IN
= -20dBm
HIGH-GAIN MODE
T
A
= +25°C
-6
4
10
6
8
12
0
-4
-2
2
200 600 800400 1000 1200 1400 1600
MAX2656
INPUT IP3 vs. R
BIAS
MAX2654 toc45
R
BIAS
(Ω)
INPUT IP3 (dBm)
f
1
= 1955MHz
f
2
= 1965MHz
P
IN
= -20dBm
LOW-GAIN MODE
T
A
= +25°C
T
A
= +85°C
T
A
= -40°C
10
0
-10
-20
-30
-40 20
-20
04060
MAX2656
INPUT LOGIC CURRENT vs. TEMPERATURE
MAX2654 toc43
TEMPERATURE (°C)
INPUT LOGIC CURRENT (µA)
80
INPUT LOGIC LOW AT V
RFOUT
I
NPUT LOGIC HIGH AT V
RFOUT
0
10
12
14
16
2
4
6
8
23456
MAX2656
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX2654 toc38
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
R
BIAS
= 511Ω ±1%
LOW-GAIN MODE
0
16
14
18
20
8
6
10
12
2
4
23456
MAX2656
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX2654 toc39
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
R
BIAS
= 392Ω ±1%
LOW-GAIN MODE
T
A
= +25°C
T
A
= +85°C
T
A
= -40°C
0
4
3
2
1
5
6
7
8
9
10
11
12
23456
MAX2656
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX2654 toc37
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
R
BIAS
= 715Ω ±1%
LOW-GAIN MODE