MAAM12022 MA-COM [M/A-COM Technology Solutions, Inc.], MAAM12022 Datasheet

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MAAM12022

Manufacturer Part Number
MAAM12022
Description
GaAs MMIC Low Noise Amplifier SOIC-8 Platform
Manufacturer
MA-COM [M/A-COM Technology Solutions, Inc.]
Datasheet

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MAAM12022TR
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Visit www.macomtech.com for additional data sheets and product information.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
changes to the product(s) or information contained herein without notice.
GaAs MMIC Low Noise Amplifier SOIC-8 Platform
Application Note
M540
Introduction
Early in 1994, M/A-COM began offering a family of
plastic packaged GaAs MMIC low noise amplifiers
(LNAs) featuring single positive supply voltage, low noise
figure, high dynamic range, and low power consumption
for the high volume commercial wireless communications
market. These MMIC LNAs use M/A-COM’s 0.5-micron,
low noise GaAs MESFET process and are housed in low
cost, 8-lead SOIC packages. These LNAs are tested in
M/A-COM’s volume automated facility to achieve low
production cost. The LNAs share a common ‘platform,’ a
product concept explained in the first major section
below, enabling fast development and delivery cycles.
This application note will show the user how to achieve
the performance in the product data sheets, i.e., how to
“get what we get,” and will answer some commonly
asked questions such as how performance varies over
bias.
information to show some interesting properties of the
MMIC LNAs for use in other applications and at slightly
different frequencies than those in the product data
sheet.
To allow the reader to use only those sections that are of
interest, the following is a brief synopsis of the major
sections of this application note:
GaAs MMIC LNA SOIC-8 Product Family: This section
discusses the ‘platform’ concept and gives an overview
of the salient features for each MMIC LNA.
MMIC
Features: This section is a detailed look inside the
design, manufacturing, and reliability issues for these
GaAs MMIC LNAs.
MMIC LNA Product Customer Use Considerations:
This section discusses the issues of importance to the
customer in order to “get what we get “ in the data sheet.
MMIC LNA Product Applications: This section shows
additional performance features of the MMIC LNAs for
their designed applications, as well as performance
characteristics for other applications such as power
amplifier driver amplifiers and using off-chip tuning
networks to shift the frequency range of performance.
Performance Data & Recommended Board Layouts:
This section discusses the measurement data that is
available, evaluation samples, and printed circuit boards.
Conclusion: This section summarizes the application
note and gives names, addresses, and phone numbers
for worldwide support.
This note also expands on the data sheet
LNA
Product
Design
and
Performance
Glossary: This section defines the abbreviated terms and
acronyms used in this application note.
GaAs MMIC LNA SOIC-8 Product Family
The MMIC LNA SOIC-8 product family establishes a
‘platform’ for M/A-COM’s Integrated Circuits Business
Unit.
manufacturing
competencies into product families which fulfill the needs
of strategic markets. The MMIC LNA SOIC-8 platform
products share some common attributes, namely:
Standard Circuit Design: All internal design blocks such
as low noise stage, gain stage, and biasing schemes are
based on proven design topologies.
Standard IC Fabrication: Only one fixed production IC
process is used; it has proven yields and well defined
SPC parameters.
Standard Manufacturing: All chips are assembled on
the same ISO-9001 certified manufacturing line in the
same SOIC-8 package.
assembly, test, qualification, in-line quality monitoring,
and documentation are identical for each device in the
platform.
The advantages of a platform approach to GaAs MMIC
product development are several.
design topology and methodology for similar products
means that many such products can be designed in
parallel-essentially
development times. The entire development cycle from
inception to preliminary release for the original five LNAs
(MAAM12021, MAAM12022, MAAM12031, MAAM12032,
and MAAM22010) in this platform took six months.
Additionally, these five LNAs are housed in one style
package, the SOIC-8, with identical pin assignments.
This commonality greatly simplifies the assembly,
fixturing, test, and documentation requirements.
Another advantage to the platform approach is that
derivative products, such as those with a different
frequency range or gain level, can be developed quickly
in one single design and manufacturing cycle; it is not
unusual to make the transition from
production in three months. Both the AM50-0001
and
have benefited from the platform approach. The AM50-
0001 is a higher dynamic range LNA in a lower frequency
band
methodology and has identical pin assignments to the
original LNAs.
topologies from the original LNAs to produce a higher
gain LNA in the SOIC-8 platform.
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
• India Tel: +91.80.4155721
AM50-0002 LNAs are derivative products which
which
A ‘platform’ is a proven product concept and
utilizes
methodology
The AM50-0002 combines design
a
the
batch
The methods for product
SOIC-8
• China Tel: +86.21.2407.1588
that
process-enabling
Using a common
concept to full
translates
platform
Rev. V3
design
core
fast

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MAAM12022 Summary of contents

Page 1

... Performance development times. The entire development cycle from inception to preliminary release for the original five LNAs (MAAM12021, MAAM12022, MAAM12031, MAAM12032, and MAAM22010) in this platform took six months. Additionally, these five LNAs are housed in one style package, the SOIC-8, with identical pin assignments. ...

Page 2

... Bias this product platform there are essentially two circuit design types, a low gain (LG) and a high gain (HG). The LG design (MAAM12022, MAAM12032, MAAM22010, and AM50-0001), shown in Figure 3, employs a single stage cascade configuration with series feedback to simultaneously achieve impedance match and minimum noise figure ...

Page 3

... In this product platform there are essentially two circuit design types, a low gain (LG) and a high gain (HG). The LG design (MAAM12022, MAAM12032, MAAM22010, and AM50-0001), shown in Figure 3, employs a single stage cascade configuration with series feedback to si- multaneously achieve impedance match and minimum noise figure ...

Page 4

... LNAs as shown on the data sheets and discussed 76 below in the product applications section. For the low psi gain MAAM12022, MAAM12032, and MAAM22010, 76 connecting a 30-35 ohm resistor from pin 2 to ground will increase the current 20 mA from nominal 5 mA. For the high gain MAAM12021 and MAAM12031, connecting a ...

Page 5

... The other two low gain LNAs, the MAAM12032 and MAAM2010, will exhibit performance gains similar to those shown above for the MAAM12022. The two high gain LNAs, MAAM12021 and MAAM12031, will exhibit a gain in- crease and produce better than +14 dBm at -1 For all the dB gain compression when biased and 20 mA ...

Page 6

... In some instances, as shown above for the MAAM12022, it may be possible to improve the noise figure of the LNA at the expense of input match also possible to combine external tuning with the bias options described in the previous subsection to create additional performance possibilities with these LNAs ...

Page 7

Application Note M540 GaAs MMIC Low Noise Amplifier SOIC-8 Platform Conclusion This application note was written to show the user how to achieve the performance in the product data sheets, i.e., how to “get what we get.” Hopefully, this note ...

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