
Cascadable Amplifier
10 to 1500 MHz
A28-2/ SMA28-2
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.
V3
1
Electrical Specifications: Z0 = 50
, VCC = +5 VDC
Parameter
Typical
Guaranteed
25C
0 to 50C
-54 to +85C*
Frequency
MHz
5-1600
10-1500
Small Signal Gain (min)
dB
14.0
13.0
12.5
Gain Flatness (max)
dB
±0.3
±0.5
±1.0
Reverse Isolation
dB
16
Noise Figure (max)
dB
3.5
4.5
5.0
Power Output
@ 1 dB comp. (min)
dBm
10.5
9.5
8.5
IP3
dBm
+24
IP2
dBm
+34
Second Order Harmonic IP
dBm
+40
VSWR Input / Output (max)
1.3:1 / 1.5:1
1.8:1 / 1.9:1
1.9:1 / 2.0:1
DC Current @ 5 Volts (max)
mA
27
30
32
Units
Features
LOW NOISE: 3.5 dB (TYP.)
HIGH EFFICIENCY: 27 mA (TYP.) @ +5 Vdc
GOOD DYNAMIC RANGE: 105 dB (TYP.)
LOW VSWR: <1.4:1 (TYP.)
Description
The A28-2 RF amplifier is a discrete thin film hybrid design, which
incorporates the use of 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. An active DC biasing network is used for temperature-
stable performance, in addition to an RF Choke, used for power
supply decoupling.
Both TO-8 and Surface Mount packages are hermetically sealed,
and MIL-STD-883 environmental screening is available
.
Product Image
Ordering Information
Part Number
Package
A28-2
TO-8
SMA28-2
Surface Mount
CA28-2
SMA Connectorized
Absolute Maximum Ratings
Parameter
Absolute
Maximum
Storage Temperature
-62C to +125C
Case Temperature
+125C
DC Voltage
+8 V
Continuous Input Power
+13 dBm
Short Term Input power
(1 minute max.)
50 mW
Peak Power (3 sec max.)
0.5 W
“S” Series Burn-In
Temperature (case)
+125C
Thermal Data: VCC = +5 VDC
Parameter
Rating
Thermal Resistance θjc
160C/W
Transistor Power Dissipation Pd
0.098 W
Junction Temperature Rise
Above Case Tjc
+16C
* Over temperature performance limits for part number CA28-2, guaranteed from 0
oC to +50oC only.