The HMC-MDB169 is a passive Double Balanced MMIC Mixer which utilizes GaAs Heterojunction Bipolar Transistor (HBT) Shottky diode technology and can be used as either an upconverter or a downconverter. This compact mixer features wide IF bandwidth, low conversion loss and high LO to RF and LO to IF isolation. All bond pads and the die backside are Ti/Au metallized and the Shottky devices are fully passivated for reliable operation. The HMC-MDB169 Double Balanced Mixer is compatible with conventional die attach methods, as well as thermocompression and thermosonic wire bonding, making it ideal for MCM and hybrid microcircuit applications. This compact MMIC is a much smaller and more consistent alternative to hybrid style double balanced mixer assemblies. All data shown herein is measured with the chip in a 50 Ohm environment and contacted with RF probes.