AT-232

Digital Attenuator, 30 dB, 4-Bit, DC - 2 GHz V 3.00 AT-232 Features n Attenuation: 2 dB steps to 30 dB n Temperature Stability: ± 0.18 dB from –55°C to +85°C n n n n CR-6 Typical Low DC Power Consumption Hermetic Surface Mount Package Fast Switching Speed, 12 ns Typical 50 Ohm Nominal Impedance Description M/A-COM’s AT-232 is a GaAs FET 4-bit digital attenuator with a 2 dB minimum step size and 30 dB total attenuation. This attenuator is in a hermetically sealed ceramic 16-lead surface mount package. The AT-232 is ideally suited for use where accuracy, fast switching, very low power consumption and low intermodulation products are required. Typical applications include dynamic range setting in precision receiver circuits and other gain/leveling control circuits. Environmental screening is available. Contact the factory for information. Electrical Specifications1 (From –55°C to +85°C) Parameter Reference Insertion Loss Test Conditions — Frequency DC - 0.5 GHz DC - 1.0 GHz DC - 2.0 GHz DC - 1.0 GHz DC - 2.0 GHz DC - 1.0 GHz DC - 2.0 GHz DC - 2.0 GHz — — — 0.05 GHz 0.5 - 2.0 GHz 0.05 GHz 0.5 - 2.0 GHz 0.05 GHz 0.5 - 2.0 GHz Units dB dB dB Min — — — Typ — — — Max 2.0 2.3 2.5 Attenuation Accuracy 2 Any Single Bit Any Combination of Bits ± (0.15 dB +3% of atten setting in dB) dB ± (0.2 dB +3% of atten setting in dB) dB Or ± 0.45 dB, whichever is greater ± (0.22 dB +3% of atten setting in dB) dB ± (0.25 dB +4% of atten setting in dB) dB Or ± 0.45 dB, whichever is greater ...