
Cascadable Amplifier  
5 to 200 MHz 
A71/ SMA71 
M/A-COM Inc. and its affiliates reserve the right to make changes to the 
product(s) or information contained herein without notice. M/A-COM makes 
no warranty, representation or guarantee regarding the suitability of its  
products for any particular purpose, nor does M/A-COM assume any liability 
whatsoever arising out of the use or application of any product(s) or  
information. 
  
North America  
Tel: 800.366.2266 / Fax: 978.366.2266 
  
Europe  
Tel: 44.1908.574.200 / Fax: 44.1908.574.300 
  
Asia/Pacific
  Tel: 81.44.844.8296 / Fax: 81.44.844.8298 
Visit www.macom.com
for additional data sheets and product information. 
V2 
1 
Electrical Specifications:  Z
0
 = 50
, V
CC
 = +15 V
DC
Parameter 
Units 
Typical 
Guaranteed 
25oC 
0o to 50oC -54o to +85oC* 
Frequency 
MHz 
1-300 
5-200 
5-200 
Small Signal Gain (min) 
dB 
18.0 
16.5 
16.0 
Gain Flatness (max) 
dB 
±0.5 
±0.8 
±1.0 
Reverse Isolation 
dB 
22 
Noise Figure (max) 
dB 
2.1 
2.5 
2.8 
Power Output 
@ 1 dB comp. (min) 
dBm 
-2.5 
-3.0 
-3.5 
IP3 
dBm 
+10 
IP2 
dBm 
+11.5 
Second Order Harmonic IP 
dBm 
+18.5 
VSWR Input / Output (max) 
1.4:1 / 1.4:1 
1.9:1 / 1.9:1 
2.0:1 / 2.0:1 
DC Current @ 15 Volts (max) 
mA 
9 
11 
13 
Features 
 
AVAILABLE IN SURFACE MOUNT 
 
LOW NOISE: 2.1 dB (TYP.) 
 
HIGH GAIN 18 dB (TYP.)                   
 
LOW VSWR <1.4:1 (TYP.) 
Description 
The A71 RF amplifier is a discrete hybrid design, which uses 
thin film manufacturing processes for accurate performance 
and  
high reliability. 
This single stage bipolar transistor feedback amplifier design   
displays impressive performance over a broadband frequency  
range.  Both TO-8 and Surface Mount packages are  
Hermetically sealed, and MIL-STD-883 environmental screen-
ing is available
. 
Product Image 
Ordering Information
Part Number 
Package 
A71 
TO-8 
SMA71 
Surface Mount 
CA71 
SMA Connectorized 
Absolute Maximum Ratings 
Parameter 
Absolute 
Maximum 
Storage Temperature 
-62oC to +125oC 
Case Temperature 
125oC 
DC Voltage 
+18 V 
Continuous Input Power 
+13 dBm 
Short Term Input power 
(1 minute max.) 
50 mW 
Peak Power (3 μsec max.) 
0.5 W 
“S” Series Burn-In 
Temperature (case) 
+125oC 
Thermal Data: V
CC
 = +15 V
DC
Parameter 
Rating 
Thermal Resistance θ
jc
45oC/W 
Transistor Power Dissipation P
d
0.053 W 
Junction Temperature Rise 
Above Case T
jc
2oC 
* Over temperature performance limits for part number CA71, guaranteed from 0
o
C to +50
o
C only.