The HMC207S8 is a miniature double-balanced mixer in an 8 lead plastic surface mount Small Outline IC (SOIC) package. This passive MMIC mixer is constructed of GaAs Schottky diodes and novel planar transformer baluns on the chip. The device can be used as a up, or downconverter, biphase modulator (de)modulator or phase comparator for 900, 1500, or 1900 MHz applications. It is especially suited for miniature base stations, cable modems, and portable wireless applications because of its high dynamic input signal range, and zero DC bias requirement. The consistent MMIC performance will improve system operation and assure regulatory compliance. The high LO suppression of 45 to 50 dB yields excellent carrier suppression for modulator applications.