AA280-25 Datasheet | Alpha Industries

Features I Attenuation 0.5 d B Steps to 15.5 d B 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, Ga As IC FET digital attenuator in a low cost SOIC-16 package. This attenuator has an LSB of 0.5 d B and a total attenuation of 15.5 d B. 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 d Bm 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 15.5 Max. 1.3 1.7 2.0 Unit d B d B d B d B d B d B n S n S m V d Bm d Bm d Bm d Bm Attenuation Range Attenuation Accuracy3 ± (0.2 + 3% of Attenuation Setting in d B) ± (0.4 + 3% of Attenuation Setting in d B) 1.4:1 15 25 25 +24 +17 +44 +35 +29 +22 +50 +40 1.8:1 DC- 2.0 GHz Input Power for 1 d B pression Intermodulation Intercept Point (IP3) Control Voltages 0.5- 2.0 GHz 0.05 GHz 1. All measurements made in a 50 Ω system, unless otherwise specified. 2. DC = 300 k Hz. 3. Attenuation referenced to insertion loss. - Due to conflict with another pany’s product numbering system, Alpha’s...