High linearity mixer has 50Ohm matched input from 30MHz to 6GHz

The LTC5510 from Linear Technology is an ultra wideband, high linearity mixer with a wide frequency range, extending to 6GHz.

The device provides a continuous 50ohm matched input from 30MHz to 6GHz and its output can reach up to 4.5GHz, allowing it to be used either as an upconversion or downconversion mixer. The LTC5510 employs an active mixer core with an on chip LO buffer. It provides a linearity performance of 27.8dBm OIP3 as an upconverting mixer, and 24.9dBm IIP3 as a downconverting mixer at 2GHz. In addition, it offers a conversion gain of 1.1dB and noise figure of 11.6dB. According to Linear, the LTC5510's extended frequency capability simplifies a number of applications, including cellular basestations, wireless repeaters and microwave backhauls that can cross over multiple frequency bands. The device is available in a 16lead, 4 x 4mm QFN package and is specified for case temperature operation from -40 to 105°C. It is optimised for single 5V supply operation, but can also be powered with a 3.3V supply.