The HMC552LP4 & HMC552LP4E are high linearity, double-balanced converter ICs that operate from 1.6 to 3.0 GHz and deliver a +25 dBm input third order intercept point. The LO amplifier output and high dynamic range mixer input are positioned so that an external LO filter can be placed in series between them. The converter provides 30 dB of LO to RF isolation and is ideal for upconverter and downconverter applications. The IC operates from a single +5V supply consuming 62 mA of current and accepts a LO drive level of -4 to +4 dBm. The design requires no external baluns and supports IF frequencies between DC and 1 GHz. The HMC552LP4 & HMC552LP4E are pin for pin compatible with the HMC551LP4 & HMC551LP4E, which operate from 0.8 to 1.2 GHz.