AA280

GaAs IC 5 Bit Digital Attenuator 0.5 dB LSB DC–2 GHz AA280-25 (Previously AD280-25)* Features I Attenuation 0.5 dB Steps to 15.5 dB with High Accuracy I Low DC Power Consumption I Low Cost SOIC-16 Plastic Package SOIC-16 PIN 16 0.050 (1.27 mm) BSC PIN 1 INDICATOR 0.244 (6.20 mm) 0.228 (5.80 mm) Description The AD280-25 is a 5 bit, GaAs IC FET digital attenuator in a low cost SOIC-16 package. This attenuator has an LSB of 0.5 dB and a total attenuation of 15.5 dB. The AD280-25 is particularly suited where high attenuation accuracy, low insertion loss and low intermodulation products are required. Typical applications include cellular radio, wireless data, wireless local loop and other gain level control circuits. PIN 1 0.068 (1.73 mm) MAX. 0.020 (0.51 mm) 0.013 (0.33 mm) 0.049 (1.24 mm) 0.016 (0.41 mm) 0.016 MAX. (0.41 mm) x 45˚ CHAMFER 8˚ MAX. 0.394 (10.00 mm) 0.386 (9.80 mm) 0.010 (0.25 mm) 0.004 (0.10 mm) 0.0098 (0.25 mm) 0.0075 (0.19 mm) 0.158 (4.00 mm) 0.150 (3.80 mm) Electrical Specifications at -40°C to +85°C (0, -5 V) Parameter1 Insertion Loss3 Condition Frequency2 DC–0.5 GHz DC–1.0 GHz DC–2.0 GHz DC–1.0 GHz DC–2.0 GHz VSWR (I/O)4 Switching Characteristics5 Rise, Fall (10/90% or 90%/10% RF) On, Off (50% CTL to 90%/10% RF) Video Feedthru 0.5–2.0 GHz 0.05 GHz For Two-tone Input Power +5 dBm VLow = 0 to 0.2 V @ 20 µA Max. VHigh = -5 V @ 300 µA Max. 4. Input/Output 5. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth. Min. Typ. 1.1 1.4 1.7...