High Performance Amplifier,
25 dB Gain, 10 - 200 MHz
V 5.00
AM-/AMC-138
Features
n
n
n
FP-9
+49 dBm Typical Midband Third Order Intercept
+25 dBm Typical Midband 1 dB Compression
5.3 dB Typical Midband Noise Figure
Description
M/A-COM’s AM-138 is a coupler feedback amplifier with
high intercept and compression points. The use of coupler
feedback minimizes noise figure and current in a high
intercept amplifier. This amplifier is packaged in a flatpack
with flanges. Due to the internal power dissipation the
thermal rise should be minimized. The ground plane on the
PC board should be configured to remove heat from under
the package. AM-138 is ideally suited for use where a high
intercept, high reliability amplifier is required.
C-25
Absolute Maximum Ratings
1
Parameter
Max. Input Power
V
bias
Operating Temperature
Storage Temperature
Absolute Maximum
+15 dBm
+17.0 V
-55°C to +85°C
-65°C to +125°C
1. Operation of this device above any one of these
parameters may cause permanent damange.
Pin Configuration
Pin #
1
2
3
4
5
Function
RF OUT
GND
GND
GND
Vbias
2
Pin #
6
7
8
9
10
Function
RF IN
GND
GND
GND
Vbias
2
2. Bias may be applied to either a single bias pin, or both
bias pins. If bias is applied to both bias pins, it is impor-
tant that potential ground loops be avoided, and that
there is adequate filtering on the bias lines.
High Performance Amplifier, 25 dB Gain, 10 - 200 MHz
AM-/AMC-138
V 5.00
Electrical Specifications
3,4
T
A
= -55°C to +85°C Case Temperature
Parameter
Gain
Frequency Response
Gain Variation with
Temperature
1 dB Compression
Noise Figure
Reverse Transmission
VSWR
Output IP
2
Output IP
3
Vbias
Ibias
Power Dissipation
Test Conditions
50 MHz @ +25°C
—
—
Output Power
—
—
—
Two-tone inputs up to +10 dBm
Two-tone inputs up to +10 dBm
—
Vbias = +15.0 VDC
@ +15V Bias
Frequency
50 MHz
10 - 200 MHz
10 - 200 MHz
10 - 200 MHz
10 - 70 MHz
10 - 200 MHz
10 - 200 MHz
10 - 200 MHz
10 - 70 MHz
10 - 200 MHz
10 - 70 MHz
10 - 200 MHz
10 - 70 MHz
—
—
—
Units
dB
dB
dB
dBm
dBm
dB
dB
Ratio
Ratio
dBm
dBm
dBm
dBm
V
mA
W
Min.
24.2
—
-1.4
+23
+25
—
—
—
—
+50
+56
+35
+41
14.25
—
—
Typ.
25.4
—
—
—
—
—
-35
—
—
—
—
—
—
15
180
2.7
Max.
25.8
±1.0
+1.0
—
—
7.0
-33
2.5:1
1.8:1
—
—
—
—
15.75
220
—
3. All specifications apply when operated at +15 VDC, with 50 ohms source and load impedance.
4. Heat Sinking: Operation at case temperature above 95°C is not recommended. Heat sinking adequate to dissipate 3.5W must
be provided in use. The flange should be screwed down to the heat sink, which should be RF ground.
Typical Performance Curves
Gain vs. Frequency
+85°C
26.0
+25°C
-55°C
72
Intermodulation Intercept
IP3
IP2
52
Gain (dB)
25.0
Intercept (dBm)IP2
68
48
24.0
64
44
23.0
3
5
10
20
50
100
200
300
60
3
5
10
20
50
100
200
40
300
Frequency (MHz)
Frequency (MHz)
Specifications subject to change without notice.
n
North America:
Tel. (800) 366-2266
n
Asia/Pacific:
Tel.+81-44-844-8296, Fax +81-44-844-8298
n
Europe:
Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
2
Intercept (dBm) IP3
High Performance Amplifier, 25 dB Gain, 10 - 200 MHz
Typical Performance Curves
AM-/AMC-138
V 5.00
VSWR vs. Frequency
RF OUT
2.50
RF IN
Noise Figure and 1 dB Compression
Output Power
6.5
Noise Figure
31
30
6.0
29
5.5
28
2.00
1.50
1.00
3
5
10
20
50
100
200
300
5.0
3
5
10
20
50
100
200
27
300
Frequency (MHz)
Frequency (MHz)
Ordering Information
Part Number
AM-138 PIN
AMC-138 SMA
Package
FP-9
C-25
Specifications subject to change without notice.
n
North America:
Tel. (800) 366-2266
n
Asia/Pacific:
Tel.+81-44-844-8296, Fax +81-44-844-8298
n
Europe:
Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
Output Power (dBm)
Noise Figure (dB)
VSWR
3
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