AT-259
Voltage Variable Absorptive Attenuator
12 dB, DC - 2.0 GHz
Features
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Attenuation: 12 dB at 1 GHz
Low Intermodulation Products
Low DC Power Consumption: 50
μW
Single Voltage Control: 0 to -4 Volts
Nanosecond Switching Speed
Temperature Range: -40°C to +85°C
SOT-143 Plastic Package
Tape and Reel Packaging Available
Rev. V5
Functional Schematic
Description
M/A-COM’s AT-259 is a GaAs MMIC voltage
variable absorptive attenuator in a low cost SOT-143
4-Lead surface mount plastic package. The AT-259
is ideally suited for use where attenuation fine
tuning, fast switching and very low power
consumption are required.
Typical applications include radio, cellular, GPS
equipment and other automatic gain/level control
circuits.
The AT-259 is fabricated with a monolithic GaAs
MMIC using a mature 1 micron process. The
process features full chip passivation for increased
performance and reliability.
Pin Configuration
Pin No.
1
2
Function
Ground
V
C
Pin No.
3
4
Function
RF2
RF1
Ordering Information
1,2
Part Number
AT-259
AT-259TR
AT-259SMB
Package
Bulk Packaging
Forward Tape and Reel
Sample Board
Absolute Maximum Ratings
3
Parameter
Input Power
Control Voltage
Operating Temperature
Storage Temperature
Absolute Maximum
+21 dBm
+5V, -8.5V
-40°C to +85°C
-65°C to +150°C
1. Reference Application Note M513 for reel size information.
2. All sample boards include 5 loose parts.
3. Exceeding any one or combination of these limits may
cause permanent damage to this device.
†
Reference Application Note M538 for lead-free solder reflow recommendations.
Meets JEDEC moisture sensitivity level 1 requirements.
1
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 / Fax: 978.366.2266
is considering for development. Performance is based on target specifications, simulated results,
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
and/or prototype measurements. Commitment to develop is not guaranteed.
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Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
Visit www.macomtech.com for additional data sheets and product information.
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.
MA-COM [ M/A-COM TECHNOLOGY SOLUTIONS, INC. ]
