19-1181; Rev 3; 2/07
VHF-to-Microwave, +3V,
General-Purpose Amplifiers
_______________General Description
The MAX2630/MAX2631/MAX2632/MAX2633 are low-
voltage, low-noise amplifiers for use from VHF to
microwave frequencies. Operating from a single +2.7V
to +5.5V supply, these devices have a flat gain
response to 900MHz. Their low noise figure and low
supply current make them ideal for receive, buffer, and
transmit IF applications.
The MAX2630/MAX2631 are biased internally, eliminat-
ing the need for external bias resistors or inductors. The
MAX2632/MAX2633 have a user-selectable supply cur-
rent, which can be adjusted by adding a single external
resistor. This allows customized output power and gain
according to specific applications requirements. The
MAX2631/MAX2633 feature a shutdown pin that allows
them to be powered down to less than 1µA supply cur-
rent. Aside from a single bias resistor required for the
MAX2632/MAX2633, the only external components
needed for this family of amplifiers are input and output
blocking capacitors and a V
CC
bypass capacitor.
The MAX2630 comes in a 4-pin SOT143 package, re-
quiring minimal board space. The MAX2631/MAX2632
come in small 5-pin SOT23 packages. The MAX2633
comes in a 6-pin SOT23 package.
____________________________Features
♦
Single +2.7V to +5.5V Operation
♦
Internally Biased (MAX2630/MAX2631)
♦
Adjustable Bias (MAX2632/MAX2633)
♦
6.6mA Supply Current (insensitive to supply
voltage)
♦
1µA Shutdown Current (MAX2631/MAX2633)
♦
3.7dB Noise Figure
♦
13.4dB Gain
♦
Ultra-Small SOT Packages
MAX2630–MAX2633
______________Ordering Information
PART
MAX2630EUS-T
TEMP RANGE
-40°C to +85°C
PIN-
PACKAGE
4 SOT143-4
5 SOT23-5
5 SOT23-5
6 SOT23-6
SOT TOP
MARK*
DG_ _
AABK
AABL
AAAA
MAX2631EUK-T
-40°C to +85°C
MAX2632EUK-T
-40°C to +85°C
MAX2633EUT-T
-40°C to +85°C
*The
first two letters in the SOT top mark identify the part,
while the remaining two letters are the lot-tracking code.
________________________Applications
Personal Communicating Systems
Global Positioning Systems
Wireless Local Area Networks
Wireless Local Loops
Land Mobile Radios
Cordless Phones
Cellular Phones
ISM Radios
TV Tuners
Set-Top Boxes
_________________Pin Configurations
TOP VIEW
4
V
CC
SHDN
1
5
IN
OUT
1
MAX2630
MAX2631
DG__
AABK
GND
2
__________Typical Operating Circuit
GND
2
3
IN
OUT
3
4
V
CC
SOT143
ON
OFF
GND
C
BLOCK
SHDN
BIAS
IN
IN
R
BIAS
BIAS
1
5
IN
SHDN
1
SOT23-5
6
IN
MAX2632
BIAS
MAX2633
AAAA
AABL
GND
2
GND
2
5
BIAS
OUT
C
BLOCK
OUT
MAX2633
V
CC
C
BYP
V
CC
OUT
3
4
V
CC
OUT
3
4
V
CC
SOT23-5
SOT23-6
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
VHF-to-Microwave, +3V,
General-Purpose Amplifiers
MAX2630–MAX2633
ABSOLUTE MAXIMUM RATINGS
V
CC
to GND ................................................................-0.3V to 6V
Input Power.........................................................................5dBm
OUT Current .....................................................................±12mA
IN to GND Voltage ...................................................-1.2V to 1.2V
Bias to GND Voltage ....................................................0.0V to 3V
Voltage at
SHDN
Input
(MAX2631/MAX2633) ............................-0.3V to (V
CC
+ 0.3V)
Current into
SHDN
Input (MAX2631/MAX2633).................100µA
Continuous Power Dissipation (T
A
= +70°C)
SOT143 (derate 4mW/°C above +70°C) .....................320mW
SOT23-5 (derate 7.1mW/°C above +70°C).................571mW
SOT23-6 (derate 7.1mW/°C above +70°C).................571mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
CAUTION!
ESD SENSITIVE DEVICE
ELECTRICAL CHARACTERISTICS
(V
CC
= +3V, Z
0
= 50Ω, f
IN
= 900MHz, R
BIAS
= 10kΩ (MAX2632/MAX2633), V
SHDN
= V
CC
(MAX2631/MAX2633), T
A
= +25°C, unless
otherwise noted.)
PARAMETERS
Operating Temperature Range
Supply Voltage
Power Gain
Noise Figure
Output 1dB Compression Point
Output IP3
Input Voltage Standing-Wave Ratio
Output Voltage Standing-Wave Ratio
f
IN
= 800MHz to 1000MHz
f
IN
= 800MHz to 1000MHz
R
BIAS
= 40kΩ
V
CC
= 3V, T
A
= +25°C
Supply Current
R
BIAS
=10kΩ V
CC
= 3V, T
A
= T
MIN
to T
MAX
(Note1)
V
CC
= 2.7V to 5.5V, T
A
= +25°C
R
BIAS
= 500Ω
Shutdown Supply Current
SHDN
Input Low Voltage
SHDN
Input High Voltage
SHDN
Input Bias Current
MAX2631/MAX2633
MAX2631/MAX2633, V
CC
= 2.7V to 5.5V
MAX2631/MAX2633, V
CC
= 2.7V to 5.5V
MAX2631/
MAX2633
V
SHDN
= V
CC
V
SHDN
= GND
2.0
30
1
5.5
4.2
5.2
15
T
A
= +25°C
T
A
= T
MIN
to T
MAX
(Note 1)
(Note 1)
CONDITIONS
MIN
-40
2.7
11
9.4
3.8
-11
-1
1.3:1
1.25:1
1.3
6.5
6.5
6.5
17
<0.1
1
0.45
µA
V
V
µA
1.5
8.0
9.2
11.0
mA
13.4
TYP
MAX
85
5.5
16.5
18.4
UNITS
degrees
V
dB
dB
dBm
dBm
Note 1:
Guaranteed by design and characterization.
2
_______________________________________________________________________________________
VHF-to-Microwave, +3V,
General-Purpose Amplifiers
MAX2630–MAX2633
__________________________________________Typical Operating Characteristics
(V
CC
= +3V, V
SHDN
= V
CC
(MAX2631/MAX2633), Z
0
= 50Ω, f
IN
= 900MHz, R
BIAS
= 10kΩ (MAX2632/MAX2633), T
A
= +25°C, unless
otherwise noted.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX2630-1
MAX2632/MAX2633
GAIN vs. SUPPLY CURRENT
MAX2630-2
GAIN vs. FREQUENCY AND VOLTAGE
MAX2632-3
10
T
A
= +85°C
8
25
20
20
f = 0.1GHz
16
V
CC
= 5V
GAIN (dB)
I
CC
(mA)
T
A
= +25°C
4
T
A
= -40°C
f = 0.9GHz
GAIN (dB)
6
15
12
V
CC
= 3V
10
f = 1.5GHz
8
2
5
4
0
2
3
4
V
CC
(V)
5
6
0
0
2.5
5.0
7.5
I
CC
(mA)
10.0
12.5
15.0
0
0.1
0.3
0.5
0.7
0.9
1.1
1.3
1.5
FREQUENCY (GHz)
GAIN vs. FREQUENCY
AND TEMPERATURE
MAX2630-4
OUTPUT 1dB COMPRESSION
POWER vs. FREQUENCY AND VOLTAGE
MAX2630-5
OUTPUT 1dB COMPRESSION
POWER vs. FREQUENCY AND TEMPERATURE
MAX2630-6
20
T
A
= -40°C
16
-5.0
-5.0
-7.5
P
-1
(dBm)
T
A
= +25°C
T
A
= +85°C
P
-1
(dBm)
-7.5
V
CC
= 5V
GAIN (dB)
12
-10.0
-10.0
T
A
= +85°C
-12.5
T
A
= -40°C
8
V
CC
= 3V
-12.5
4
0
0.1
0.3
0.5
0.7
0.9
1.1
1.3
1.5
FREQUENCY (GHz)
-15.0
0.1
0.3
0.5
0.7
0.9
1.1
1.3
1.5
FREQUENCY (GHz)
-15.0
0.1
0.3
0.5
0.7
0.9
1.1
1.3
1.5
FREQUENCY (GHz)
MAX2632/MAX2633
OUTPUT 1dB COMPRESSION
POWER vs. SUPPLY CURRENT
MAX2630-7
NOISE FIGURE vs. FREQUENCY
MAX2630-8
0
5
-4
f = 0.1GHz
f = 0.9GHz
NOISE FIGURE (dB)
15.0
4
P
-1
(dBm)
-8
f = 1.5GHz
-12
3
2
-16
1
-20
0
2.5
5.0
7.5
I
CC
(mA)
10.0
12.5
0
0.1
0.3
0.5
0.7
0.9
1.1
1.3
1.5
FREQUENCY (GHz)
_______________________________________________________________________________________
3
VHF-to-Microwave, +3V,
General-Purpose Amplifiers
MAX2630–MAX2633
____________________________Typical Operating Characteristics (continued)
(V
CC
= +3V, V
SHDN
= V
CC
(MAX2631/MAX2633), Z
0
= 50Ω, f
IN
= 900MHz, R
BIAS
= 10kΩ (MAX2632/MAX2633), T
A
= +25°C, unless
otherwise noted.)
MAX2632/MAX2633
SUPPLY CURRENT vs. R
BIAS
MAX2630-9
MAX2631/MAX2633
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX2630 toc11
VOLTAGE STANDING-WAVE
RATIO vs. FREQUENCY
MAX2630-10
15
0.05
5:1
12
SHUTDOWN I
CC
(μA)
0.04
4:1
I
CC
(mA)
VSWR
9
V
CC
= 3V
V
CC
= 5V
0.03
V
CC
= 5.5V
0.02
V
CC
= 3.0V
0.01
3:1
OUT
2:1
6
3
V
CC
= 4V
0
1
10
R
BIAS
(kΩ)
100
V
CC
= 2.7V
1:1
-40
-20
0
20
40
60
80
0.1
0.3
0.5
0.7
IN
0.9
1.1
1.3
1.5
0
TEMPERATURE (°C)
FREQUENCY (GHz)
______________________________________________________________Pin Description
PIN
NAME
MAX2630
3
MAX2631
5
MAX2632
5
MAX2633
6
IN
Amplifier Input. Use a series blocking capacitor with less than
3Ω reactance at your lowest operating frequency.
Ground Connection. For optimum performance, provide a low-
inductance connection to the ground plane.
Amplifier Output. Use a series blocking capacitor with less than
3Ω reactance at your lowest operating frequency.
Supply Connection. Bypass directly at the supply pin. The value
of the bypass capacitor is determined by the lowest operating
frequency, and is typically the same as the blocking capacitor
value. Additional bypassing may be necessary for long V
CC
lines.
Shutdown Input. Driving
SHDN
with a logic low turns off the
amplifier.
Bias Resistor Connection. Connect a resistor to GND to set the
bias current. See the Supply Current vs. R
BIAS
graph in the
Typical Operating Characteristics.
FUNCTION
2
2
2
2
GND
1
3
3
3
OUT
4
4
4
4
V
CC
—
1
—
1
SHDN
—
—
1
5
BIAS
4
_______________________________________________________________________________________
VHF-to-Microwave, +3V,
General-Purpose Amplifiers
Table 1a. Typical Scattering Parameters
(V
CC
= +3V, V
SHDN
= V
CC
, Z
0
= 50Ω, R
BIAS
= 10kΩ, T
A
= +25°C.)
FREQUENCY
(GHz)
0.05
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.20
1.40
1.60
1.80
2.00
2.20
2.40
2.50
S11
(mag)
0.59
0.37
0.22
0.17
0.16
0.15
0.14
0.14
0.14
0.13
0.13
0.06
0.11
0.24
0.30
0.31
0.27
0.24
0.22
S11
(ang)
-50
-70
-86
-100
-109
-99
-86
-68
-49
-31
-10
19
-60
-31
-26
-66
-98
-115
-120
S21
(dB)
12.9
14.2
14.5
14.5
14.5
14.3
14.1
13.9
13.5
13.0
12.6
10.8
7.9
5.6
4.8
4.3
3.6
2.6
2.2
S21
(mag)
4.39
5.11
5.32
5.32
5.28
5.19
5.05
4.93
4.75
4.49
4.25
3.48
2.48
1.91
1.73
1.63
1.51
1.36
1.29
S21
(ang)
46
1
-49
-89
-125
-138
-127
-116
-104
-93
-82
-58
-110
-162
144
86
27
5
12
S12
(dB)
-38.7
-36.7
-35.8
-35.0
-34.4
-33.6
-33.0
-32.2
-31.3
-30.3
-29.0
-25.8
-23.7
-23.6
-23.7
-23.3
-22.3
-21.3
-21.0
S12
(mag)
0.012
0.015
0.016
0.018
0.019
0.021
0.022
0.025
0.027
0.031
0.035
0.051
0.065
0.066
0.065
0.069
0.077
0.086
0.089
S12
(ang)
37
12
-13
-32
-51
-70
-89
-107
-124
-142
-161
153
113
122
120
117
116
116
114
S22
(mag)
0.62
0.57
0.54
0.53
0.51
0.50
0.48
0.46
0.44
0.42
0.40
0.33
0.26
0.26
0.26
0.25
0.24
0.25
0.27
S22
(ang)
-19
-29
-49
-71
-94
-118
-109
-96
-82
-68
-53
-25
-12
-7
-34
-63
-83
-97
-106
K
4.30
4.07
3.93
3.74
3.61
3.45
3.38
3.27
3.16
3.05
2.87
2.59
2.90
3.51
3.76
3.80
3.80
3.81
3.86
MAX2630–MAX2633
5
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