AT-113
3 Volt Voltage Variable Absorptive Attenuator
40 dB, 0.5 - 2.0 GHz
Rev. V6
Functional Schematic 3,4,5,6
Features
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Single Positive Voltage Control: 0 to +3 Volts
40 dB Attenuation Range at 0.9 GHz
± 2 dB Linearity from BSL
Low DC Power Consumption
SOIC-8 Plastic Package
8
7
6
5
Tape and Reel Packaging Available
Description
M/A-COM’s AT-113 is a GaAs MMIC voltage
variable absorptive attenuator in a low-cost SOIC 8-
lead surface mount plastic package. The AT-113 is
ideally suited for use where linear attenuation fine
tuning and very low power consumption are
required.
1
2
3
4
Typical applications include radio, cellular, GPS
equipment and automatic gain/level control circuits.
3. VCC = +3 VDC @ 50 µA maximum.
4. VC = 0 VDC to +3 VDC @ 50 µA maximum.
5. External DC blocking capacitors are required on all RF ports.
6. 39 pF used for data measurements.
The AT-113 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
Ordering Information 1,2
Pin No.
Function
Ground
Ground
RF Port
VCC
Pin No.
Function
VC
1
2
3
4
5
6
7
8
Part Number
AT-113
Package
Bulk Packaging
Ground
RF Port
Ground
AT-113TR
AT-113SMB
Forward Tape and Reel
Sample Board
1. Reference Application Note M513 for reel size information.
2. All sample boards include 5 loose parts.
Absolute Maximum Ratings 7
Parameter
Input Power
Absolute Maximum
+21 dBm
Supply Voltage VCC
Control Voltage VC
Operating Temperature
Storage Temperature
-1 V < VCC < +8 V
-1 V < VC < VCC + 0.5 V
-40°C to +85°C
-65°C to +150°C
7. 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
is considering for development. Performance is based on target specifications, simulated results,
and/or prototype measurements. Commitment to develop is not guaranteed.
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.
Commitment to produce in volume is not guaranteed.
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
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.