_______________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.
________________________Applications
Personal Communicating Systems
Cordless Phones
Global Positioning Systems
Cellular Phones
Wireless Local Area Networks
ISM Radios
Wireless Local Loops
TV Tuners
Land Mobile Radios
Set-Top Boxes
____________________________Features
o
Single +2.7V to +5.5V Operation
o
Internally Biased (MAX2630/MAX2631)
o
Adjustable Bias (MAX2632/MAX2633)
o
6.6mA Supply Current (insensitive to supply
voltage)
o
1µA Shutdown Current (MAX2631/MAX2633)
o
3.7dB Noise Figure
o
13.4dB Gain
o
Ultra-Small SOT Packages
MAX2630MAX2633
VHF-to-Microwave, +3V,
General-Purpose Amplifiers
________________________________________________________________
Maxim Integrated Products
1
OUT
V
CC
GND
3
4
2
1
IN
SOT143
TOP VIEW
DG_
_
MAX2630
GND
V
CC
OUT
1
5
IN
BIAS
MAX2632
SOT23-5
2
3
4
GND
BIAS
V
CC
OUT
1
6
5
IN
SHDN
MAX2633
SOT23-6
2
3
4
GND
V
CC
OUT
1
5
IN
SHDN
MAX2631
SOT23-5
2
3
4
AAAA
AABL
AABK
_________________Pin Configurations
R
BIAS
OFF
ON
SHDN
GND
OUT
IN
BIAS
V
CC
C
BYP
C
BLOCK
V
CC
C
BLOCK
IN
OUT
BIAS
MAX2633
__________Typical Operating Circuit
PART
MAX2630
EUS-T
MAX2631
EUK-T
MAX2632
EUK-T
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE
PIN-
PACKAGE
4 SOT143
5 SOT23-5
5 SOT23-5
______________Ordering Information
MAX2633
EUT-T
-40°C to +85°C
6 SOT23-6
19-1181; Rev 1; 7/97
SOT TOP
MARK*
DG_ _
AABK
AABL
AAAA
*
The first two letters in the SOT top mark identify the part,
while the remaining two letters are the lot-tracking code.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
MAX2630MAX2633
VHF-to-Microwave, +3V,
General-Purpose Amplifiers
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= +3V, Z
0
= 50
, f
IN
= 900MHz, R
BIAS
= 10k
(MAX2632/MAX2633), V
SHDN
= V
CC
(MAX2631/MAX2633), T
A
= +25°C, unless
otherwise noted.)
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.
Note 1:
Guaranteed by design and characterization.
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, 10sec) .............................+300°C
PARAMETERS
MIN
TYP
MAX
UNITS
Output Voltage Standing-Wave Ratio
1.25:1
Input Voltage Standing-Wave Ratio
1.3:1
Output IP3
-1
dBm
Output 1dB Compression Point
-11
dBm
1.3
1.5
5.5
6.5
8.0
Operating Temperature Range
-40
85
degrees
Power Gain
11
13.4
16.5
dB
Noise Figure
3.8
dB
Shutdown Supply Current
<0.1
1
µA
SHDN Input Low Voltage
0.45
V
SHDN Input High Voltage
2.0
V
SHDN Input Bias Current
30
1
µA
CONDITIONS
f
IN
= 800MHz to 1000MHz
f
IN
= 800MHz to 1000MHz
R
BIAS
=10k
(Note 1)
T
A
= +25°C
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
Supply Voltage
2.7
5.5
V
9.4
18.4
T
A
= T
MIN
to T
MAX
(Note 1)
4.2
6.5
9.2
5.2
6.5
11.0
mA
Supply Current
15
17
R
BIAS
= 500
R
BIAS
= 40k
V
CC
= 3V, T
A
= +25°C
V
CC
= 2.7V to 5.5V, T
A
= +25°C
V
CC
= 3V, T
A
= T
MIN
to T
MAX
(Note1)
MAX2630MAX2633
VHF-to-Microwave, +3V,
General-Purpose Amplifiers
_______________________________________________________________________________________
3
__________________________________________Typical Operating Characteristics
(V
CC
= +3V, V
SHDN
= V
CC
(MAX2631/MAX2633), Z
0
= 50
, f
IN
= 900MHz, R
BIAS
= 10k
(MAX2632/MAX2633), T
A
= +25°C, unless
otherwise noted.)
10
8
6
4
2
0
2
3
4
5
6
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX2630-1
V
CC
(V)
I
CC
(mA)
T
A
= +85°C
T
A
= -40°C
T
A
= +25°C
25
20
15
10
5
0
0
5.0
2.5
10.0
15.0
MAX2632/MAX2633
GAIN vs. SUPPLY CURRENT
MAX2630-2
I
CC
(mA)
GAIN (dB)
7.5
12.5
f = 0.1GHz
f = 0.9GHz
f = 1.5GHz
20
16
12
8
4
0
0.1
0.3
0.7
1.1
1.3
1.5
GAIN vs. FREQUENCY AND VOLTAGE
MAX2632-3
FREQUENCY (GHz)
GAIN (dB)
0.5
0.9
V
CC
= 5V
V
CC
= 3V
-5.0
-7.5
-10.0
-12.5
-15.0
0.1
0.3
0.7
1.1
1.3
1.5
OUTPUT 1dB COMPRESSION
POWER vs. FREQUENCY AND TEMPERATURE
MAX2630-6
FREQUENCY (GHz)
P
-1
(dBm)
0.5
0.9
T
A
= -40°C
T
A
= +85°C
20
16
12
8
4
0
0.1
0.3
0.7
1.1
1.3
1.5
GAIN vs. FREQUENCY
AND TEMPERATURE
MAX2630-4
FREQUENCY (GHz)
GAIN (dB)
0.5
0.9
T
A
= -40°C
T
A
= +85°C
T
A
= +25°C
-5.0
-7.5
-10.0
-12.5
-15.0
0.1
0.3
0.7
1.1
1.3
1.5
OUTPUT 1dB COMPRESSION
POWER vs. FREQUENCY AND VOLTAGE
MAX2630-5
FREQUENCY (GHz)
P
-1
(dBm)
0.5
0.9
V
CC
= 5V
V
CC
= 3V
0
-4
-8
-12
-16
-20
0
2.5
7.5
12.5
15.0
MAX2632/MAX2633
OUTPUT 1dB COMPRESSION
POWER vs. SUPPLY CURRENT
MAX2630-7
I
CC
(mA)
P
-1
(dBm)
5.0
10.0
f = 0.1GHz
f = 0.9GHz
f = 1.5GHz
5
4
3
2
1
0
0.1
0.3
0.5
0.9
1.1
1.5
NOISE FIGURE vs. FREQUENCY
MAX2630-8
FREQUENCY (GHz)
NOISE FIGURE (dB)
0.7
1.3
MAX2630MAX2633
VHF-to-Microwave, +3V,
General-Purpose Amplifiers
4
_______________________________________________________________________________________
______________________________________________________________Pin Description
MAX2630
1
2
3
5
4
--
2
--
IN
GND
3
OUT
V
CC
4
SHDN
6
2
3
4
1
MAX2633
PIN
--
NAME
BIAS
5
1
Amplifier Input. Use a series blocking capacitor with less than
3
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
3
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.
FUNCTION
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.
--
MAX2632
MAX2631
5
2
3
4
1
15
12
9
6
3
0
1
10
100
MAX2632/MAX2633
SUPPLY CURRENT vs. R
BIAS
MAX2630-9
R
BIAS
(k
)
I
CC
(mA)
V
CC
= 5V
V
CC
= 3V
V
CC
= 4V
0
0.01
0.03
0.02
0.04
0.05
-40
0
-20
20
40
60
80
MAX2631/MAX2633
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX2630 toc11
TEMPERATURE (°C)
SHUTDOWN I
CC
(
µ
A)
V
CC
= 5.5V
V
CC
= 2.7V
V
CC
= 3.0V
5:1
4:1
3:1
2:1
1:1
0.1
0.3
0.7
1.1
1.3
1.5
VOLTAGE STANDING-WAVE
RATIO vs. FREQUENCY
MAX2630-10
FREQUENCY (GHz)
VSWR
0.5
0.9
OUT
IN
____________________________Typical Operating Characteristics (continued)
(V
CC
= +3V, V
SHDN
= V
CC
(MAX2631/MAX2633), Z
0
= 50
, f
IN
= 900MHz, R
BIAS
= 10k
(MAX2632/MAX2633), T
A
= +25°C, unless
otherwise noted.)
MAX2630MAX2633
VHF-to-Microwave, +3V,
General-Purpose Amplifiers
_______________________________________________________________________________________
5
Table 1a. Typical Scattering Parameters
(V
CC
= +3V, V
SHDN
= V
CC
, Z
0
= 50
, R
BIAS
= 10k
, T
A
= +25°C.)
4.30
-19
0.62
37
0.012
0.05
-38.7
46
4.39
12.9
-50
0.59
3.86
-106
0.27
114
0.089
-21.0
12
1.29
2.2
-120
0.22
2.50
3.81
-97
0.25
116
0.086
-21.3
5
1.36
2.6
-115
0.24
2.40
3.80
-83
0.24
116
0.077
-22.3
27
1.51
3.6
-98
0.27
2.20
3.80
-63
0.25
117
0.069
-23.3
86
1.63
4.3
-66
0.31
2.00
3.76
-34
0.26
120
0.065
-23.7
144
1.73
4.8
-26
0.30
1.80
3.51
-7
0.26
122
0.066
-23.6
-162
1.91
5.6
-31
0.24
1.60
2.90
-12
0.26
113
0.065
-23.7
-110
2.48
7.9
-60
0.11
1.40
K
4.07
3.93
3.74
3.61
3.45
3.38
3.27
3.16
3.05
2.87
2.59
S22
(ang)
-29
-49
-71
-94
-118
-109
-96
-82
-68
-53
-25
S22
(mag)
0.57
0.54
0.53
0.51
0.50
0.48
FREQUENCY
(GHz)
0.46
0.44
0.42
0.60
0.40
0.33
S12
(ang)
12
-13
-32
0.50
-51
-70
0.40
-89
-107
-124
0.70
-142
-161
153
0.80
S12
(mag)
0.015
0.016
0.90
0.018
0.019
0.021
1.00
0.022
0.025
0.027
0.10
0.031
0.035
0.20
0.051
S12
(dB)
-36.7
0.30
-35.8
-35.0
-34.4
1.20
-33.6
-33.0
-32.2
-31.3
-30.3
-29.0
-25.8
S21
(ang)
1
-49
-89
-125
-138
-127
-116
-104
-93
-82
-58
S21
(mag)
5.11
5.32
5.32
5.28
5.19
5.05
4.93
4.75
4.49
4.25
3.48
S21
(dB)
14.2
14.5
14.5
14.5
14.3
14.1
13.9
13.5
13.0
12.6
10.8
S11
(ang)
-70
-86
-100
-109
-99
-86
-68
-49
-31
-10
19
S11
(mag)
0.37
0.22
0.17
0.16
0.15
0.14
0.14
0.14
0.13
0.13
0.06
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