A72 / SMA72
Cascadable Amplifier
5 to 500 MHz
Rev. V3
Features
Product Image
LOW POWER DRAIN 31 mA (TYP.)
HIGH OUTPUT LEVEL: +12.5 dBm (TYP.)
HIGH IP3: +28 dBm (TYP.) AT Vcc = +8 Vdc
Description
The A72 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 avail-
able.
Ordering Information
Part Number
Package
A72
TO-8
SMA72
CA72 **
Surface Mount
SMA Connectorized
** The connectorized version is not RoHs compliant.
Electrical Specifications: Z0 = 50, VCC = +5 VDC
Absolute Maximum Ratings
Parameter
Absolute
Typical
25ºC
2-700
15.0
Guaranteed
0º to 50ºC -54º to +85ºC*
Maximum
-62ºC to +125ºC
125ºC
Parameter
Units
Storage Temperature
Case Temperature
DC Voltage
Frequency
MHz
dB
5-500
14.0
5-500
13.5
+9 V
Small Signal Gain (min)
Gain Flatness (max)
Reverse Isolation
Continuous Input Power
+13 dBm
dB
±0.2
±0.7
±1.0
Short Term Input power
(1 minute max.)
50 mW
0.5 W
125ºC
dB
20
Peak Power (3 µsec max.)
Noise Figure (max)
dB
3.3
4.0
4.5
“S” Series Burn-In
Temperature (case)
Power Output
@ 1 dB comp. (min)
dBm
12.5
11.5
11.0
Thermal Data: VCC = +5 VDC
IP3
dBm
dBm
dBm
+26
+36
+42
Parameter
Rating
IP2
Thermal Resistance θjc
140ºC/W
Second Order Harmonic IP
VSWR Input / Output (max)
DC Current @ 5 Volts (max)
Transistor Power Dissipation Pd
0.126 W
1.3:1 / 1.3:1 1.7:1 / 1.7:1
31 34
1.8:1 / 1.8:1
36
Junction Temperature Rise
Above Case Tjc
18ºC
mA
* Over temperature performance limits for part number CA72, guaranteed from 0oC to +50oC only.
1
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