Integrated RF Cascode Amplifier Built For Low-Noise Operation

A high-isolation cascode amplifier is intended to simplify RF designs for 100 MHz to 2.5 GHz applications. The MBC13916, which employs silicon germanium: carbon (SiGe:C) technology, is a replacement for the companyÕs MRFIC0916. At 900 MHz, the IC has a minimum noise figure (NFmin) of 0.9 dB at the device level and a noise figure (NF) of 1.25 dB in a typical circuit. At 1.9 GHz, it has a NFmin of 1.9 dB at the device level, and a NF of 2.1 dB in a typical circuit. The drain current is 4.7 mA at a VCC of 2.7V. Available in a four-pin SOT-343R ultra-small surface mount package, the device is priced at $0.23 each/10,000. For further information, contact MOTOROLA INC., Phoenix, AZ. (480) 413-4991.