AT-280
Digital Attenuator, 15.5 dB, 5-Bit
DC - 2.0 GHz
Features
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0.5 dB Attenuation Steps to 15.5 dB
Ultra Low DC Power Consumption
Low Intermodulation Product: +45 dBm IP3
SOIC-16 Plastic Package
Tape and Reel Packaging Available
Temperature Stability: +/-0.15 dB from -40°C to
+85°C
Rev. V5
Functional Schematic
Description
M/A-COM’s AT-280 is a 5-bit, 0.5-dB step GaAs
MMIC digital attenuator in a low cost SOIC 16-lead
surface mount plastic package. The AT-280 is
ideally suited for use where high accuracy, fast
switching, very low power consumption and low
intermodulation products are required at a low cost.
Typical applications include radio and cellular
equipment, wireless LANS, GPS equipment and
other gain/level control circuits.
The AT-280 is fabricated with a monolithic GaAs
MMIC using a mature 1-micron process. The
process features full chip passivation for increased
performance and reliability.
1
Pin Configuration
Pin No.
1
2
3
4
5
Function
VC1
VC1
VC2
VC2
VC3
VC3
VC4
VC5
Pin No.
9
10
11
12
13
14
15
16
Function
RF2
Ground
Ground
Ground
Ground
Ground
Ground
RF1
Ordering Information
Part Number
AT-280
AT-280TR
AT-280SMB
Package
SOIC 16–Lead
Forward Tape and Reel
Sample Test Board (Includes 5 Samples)
6
7
8
Absolute Maximum Ratings
2
Parameter
Input Power:
0.05 GHz
0.5 - 2.0 GHz
Control Voltage
Operating Temperature
Storage Temperature
1. Reference Application Note M513 for reel size information.
Absolute Maximum
+27 dBm
+34 dBm
-8.5 V < V
C
< +5 V
-40°C to +85°C
-65°C to +150°C
2. Exceeding any one or combination of these limits may cause
permanent damage to this device.
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.
•
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. ]
