A81 / SMA81
Cascadable Amplifier
20 to 250 MHz
Features
•
•
•
•
HIGH REVERSE ISOLATION: >30 dB (TYP.)
HIGH GAIN: 26 dB (TYP.)
HIGH LEVEL OUTPUT: +17 dBm (TYP.)
LOW NOISE: 2.6 dB (TYP.)
Rev. V3
Product Image
Description
The A81 RF amplifier is a discrete hybrid design, which uses
thin film manufacturing processes for accurate performance
and high reliability.
The 2 stage silicon bipolar feedback amplifier design displays
impressive performance over a broadband frequency range.
An isolation transformer is used in the feedback loop, with the
benefit of high reverse isolation.
Both TO-8 and Surface Mount packages are hermetically
sealed, and MIL-STD-883 environmental screening is available
.
Ordering Information
Part Number
A81
SMA81
CA81**
Package
TO-8
Surface Mount
SMA Connectorized
** The connectorized version is not RoHs compliant.
Electrical Specifications: Z
0
= 50Ω, V
CC
= +15 V
DC
Typical
Parameter
Frequency
Small Signal Gain (min)
Gain Flatness (max)
Reverse Isolation
Noise Figure (max)
Power Output
@ 1 dB comp. (min)
IP3
IP2
Second Order Harmonic IP
VSWR Input / Output (max)
DC Current @ 15 Volts (max)
mA
Absolute Maximum Ratings
Parameter
Storage Temperature
Case Temperature
DC Voltage
Continuous Input Power
Short Term Input power
(1 minute max.)
Peak Power (3 µsec max.)
“S” Series Burn-In
Temperature (case)
Guaranteed
0º to 50ºC
20-250
24.5
±0.5
Units
25ºC
MHz
dB
dB
dB
dB
dBm
dBm
dBm
dBm
10-300
25.5
±0.1
31
3.0
17.0
+28
+35
+41
1.5:1 / 1.5:1
33
1.9:1 / 1.9:1
37
2.0:1 / 2.0:1
39
3.5
16.0
4.0
15.5
Absolute
Maximum
-62ºC to +125ºC
125ºC
+17 V
+10 dBm
50 mW
0.5 W
125ºC
-54º to +85ºC*
20-250
24.0
±0.7
Thermal Data: V
CC
= +15 V
DC
Parameter
Thermal Resistance
θ
jc
Transistor Power Dissipation P
d
Junction Temperature Rise
Above Case T
jc
Rating
184ºC/W
0.155 W
28ºC
* Over temperature performance limits for part number CA81, guaranteed from 0
o
C to +50
o
C only.
1
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.4155721
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
A81 / SMA81
Cascadable Amplifier
20 to 250 MHz
Typical Performance Curves at +25°C
Outline Drawing: TO-8
*
Rev. V3
WEIGHT: 1 gram (0.04 oz.) max
Outline Drawing: Surface Mount
*
WEIGHT: 1 gram (0.04 oz.) max
Outline Drawing: SMA Connectorized
*
WEIGHT: 19 grams (0.67 oz.) max
∗
2
Dimensions are inches (millimeters) ±0.015 (0.38) unless otherwise specified.
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.4155721
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
京公网安备 11010802033920号
EEWORLD
