AT-259

Voltage Variable Absorptive Attenuator DC - 2 GHz Features q q q q q q q q AT-259 V 2.00 SOT-143 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 Low Cost SOT/143 Plastic Package Tape and Reel Packaging Available1 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. Ordering Information Part Number AT-259 PIN AT-259TR AT-259RTR Unit dB dB dB dB dB dB dB nS nS mV dBm dBm dBm dBm dBm 18 18.5 Package SOT 4-Lead Plastic Package Forward Tape & Reel Reverse Tape & Reel Min. Typ. 2.9 3.0 3.2 3.4 ± 0.2 ± 2.3 ± 7.0 2.1:1 3 5 10 Max 3.1 3.2 3.5 3.8 ± 0.4 ± 2.5 ± 7.5 Electrical Specifications, TA = +25°C Parameter Insertion Loss Test Conditions2 DC – 0.1 GHz DC – 0.5 GHz DC – 1.0 GHz DC – 2.0 GHz 5 dB Attenuation 10 dB Attenuation 15 dB Attenuation Flatness (Peak to Peak) VSWR Trise, Tfall Ton, Toff Transients Power Handling IP2 DC – 2.0 GHz IP3 10% ...