Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LTC5553, a double balanced mixer providing best-in-class matched bandwidth capability from 3 to 20 GHz. The mixer can be used either as an up- or downconverter. In addition, the LTC5553 delivers outstanding linearity of 23.9 dBm IIP3 at 14 GHz, and 21.5 dBm at 17 GHz. The device integrates an LO buffer requiring only 0 dBm input drive, effectively eliminating an external high power LO amplifier circuit.