Hittite Microwave Corporation, the world class supplier of complete MMIC based solutions for communication & military markets, announces a new family of GaAs MMIC fundamental mixers, I/Q mixers, and sub-harmonic IRM mixers in chip form which provide broad frequency coverage from 19 to 90 GHz. These Velocium GaAs MMIC mixer products are an ideal choice for use in a wide range of applications including microwave radio, military and space, wideband communication systems, VSAT, SATCOM, automotive radar and test instrumentation. The HMC-MDB172 is a monolithic 19 to 33 GHz GaAs MMIC I/Q mixer which operates as either an image reject mixer (IRM) or as a single sideband upconverter. This passive I/Q mixer features a wide IF bandwidth of DC to 5 GHz, high LO to RF isolation of 35 dB, and 25 dB of image rejection. The HMC-MDB171 is a monolithic 35 to 45 GHz GaAs MMIC I/Q mixer which operates as either an image reject mixer (IRM) or as a single sideband upconverter. This passive I/Q mixer features a wide IF bandwidth of DC to 5 GHz, high LO to RF isolation of 35 dB, and 25 dB of image rejection. The HMC-MDB218 a sub-harmonically pumped 54 to 64 GHz (x2) GaAs MMIC mixer which features a wide IF bandwidth of DC to 3 GHz, and operates with LO frequencies from 27 to 32 GHz. This passive sub-harmonic mixer may be used as either an image reject mixer (IRM) or as a single sideband upconverter providing up to 30 dB of image rejection. The HMC-MDB207 is a monolithic 55 to 64 GHz GaAs MMIC I/Q mixer which operates as either an image reject mixer (IRM) or as a single sideband upconverter. This passive MMIC mixer features a wide IF bandwidth of DC to 3 GHz, provides 30 dB of image rejection, and high LO to RF isolation of 30 dB. The HMC-MDB169 is a passive 54 to 64 GHz double balanced MMIC mixer which operates as either an upconverter or a downconverter. This compact mixer features wide IF bandwidth of DC to 5 GHz, 8 dB of conversion loss and high LO to RF isolation of 30 dB. LO to IF isolation is 25 dB. The HMC-MDB277 is a passive 70 to 90 GHz double balanced MMIC mixer which operates as either an upconverter or a downconverter. This compact mixer features wide IF bandwidth of DC to 18 GHz, 12 dB of conversion loss and operates with up to +14 dBm of LO input power. Due to their small size, these Velocium GaAs MMIC mixer products are ideal for integration into microstrip, multi-chip modules and hybrid circuits. Die products are available from stock and can be ordered via the company’s e-commerce site or via direct purchase order. Released data sheets are available on-line at www.hittite.com.