CMD280C3

CMD280C3 DC-18 GHz 5-bit Digital Attenuator Features ► Wideband performance ► Low insertion loss ► Wide attenuation range ► Pb-free RoHs compliant 3x3 QFN package Description The CMD280C3 is a negative controlled, wideband GaAs MMIC 5-bit digital attenuator housed in a leadless 3x3 mm surface mount package. Each bit of the attenuator is controlled by a single voltage of either 0 V or -5 V. The attenuator bit values are 0.5 (LSB), 1, 2, 4, and 8 dB, for a total attenuation of 15.5 dB. The CMD280C3 has a low insertion loss of 3 at 10 GHz and the attenuation accuracy is typically 0.1 dB step error. The CMD280C3 is a 50 ohm matched design which eliminates the need for RF port matching. Functional Block Diagram Electrical Performance – Vee = -5 V, Vctl = 0 / -5 V, TA = 25 oC, F=10 GHz Parameter Min Typ Max Frequency Range DC – 18 Insertion Loss 3 Attenuation Range 15.5 Input Return Loss 15 Output Return Loss 14 Input P0.1dB 24 Input IP3 42 Switching Speed 25...