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M/A-COM's AT-109 is a GaAs MMIC voltage variable absorptive attenuator in a low-cost SOIC 8-lead surface mount plastic package. The AT-109 is more linear than the higher attenuation range AT-108. The AT-109 is ideally suited for use where linear attenuation fine tuning and very low power comsumption are re quired. Typical applications include radio, cellular, GPS equipment and automatic gain/level control circ u i t s .
The AT-109 is fabricated with a monolithic GaAs MMIC using a mature 1-micron process. The process features full chip passivation for increased perf o rmance and reliability .
AT-109 Maximum Ratings
Parameter
Absolute Maximum
Maximum Input Power
Supply Voltage VCC
Control Voltage VC
Operating Temperature
Storage Temperature
+21 dBm
-1 V, +8 V
-1 V, VCC +0.5 V
-40°C to +85°C
-65°C to +150°C
AT-109 Features
Single Positive Voltage Control 0 to +5 Vo l t s 35 dB Attenuation Range at 0.9 GHz ±2 dB Linearity from BSL Low DC Power Consumption Temperature Range: -40°C to +85°C Low-Cost SOIC 8 Plastic Package Tape and Reel Packaging Available