
DC-18 GHz switches and MMIC amplifiers to 36 GHz
Non-reflective switches covering DC to 18 GHz include, the SP3T CMD234C4, which provides high isolation of 40 dB at 10 GHz and very low insertion loss of 2 dB. The CMD234C4 includes an on board binary decoder circuit, requiring only 2 complimentary control voltage logic lines of 0/-5 V.
The SP5T CMD235C4, similar to the SP3T design, features a low power integrated 3:8 TTL decoder for enhanced digital control. The CMD235C4 provides an insertion loss of 2.5 dB and a high isolation of 40 dB at 10 GHz. Both the CMD235C4 and CMD234C4 come in small size and Pb-free RoHs compliant 4×4 SMT QFN packages, and have a switching speed of only 66 ns. The GaAs switches are well suited to test and measurement, military, and telecommunications applications.
Offering ultra wideband performance from DC to 22 GHz, the CMD240 is a GaAs MMIC distributed amplifier with a noise figure down to 2.2 dB and a gain of 15 dB. Also highly linear, the CMD240 demonstrates a 1 dB compression point of 19 dBm at 10 GHz and an output IP3 of 28 dBm with only 80 mA supply current.
With slightly less current draw and a gain of 13.5 dB from 2 to 22 GHz, the CMD241 distributed amplifier has a noise figure of 2.3 dB. The CMD241 features enhanced linearity performance with an output P1dB of 21 dBm.
Conveniently, both the CMD240 and CMD241 eliminate the need for an external DC block and are matched to 50 ohms. These low-noise distributed amplifiers are a solid fit for military, aerospace, and microwave/milli-meter wave telecommunications applications.
In applications with very small size and high linearity requirements, the CMD243 wideband balanced driver amplifier offers 15.5 dB of gain and operates from 26 to 35 GHz. The CMD243 also provides an output P1dB of 21 dBm, a low noise figure of 4.4 dB and is 50 ohm matched. The CMD243 is ideal for communications, military, and space applications.
