Linear Technology introduces the LT5522, a high performance active downconverting mixer that operates with RF input from 600 MHz to 2.7 GHz. The LT5522 offers high third-order intercept (IP3) performance, extending system dynamic range and simplifying receiver design. The LT5522 RF input has an on-chip transformer that is 50 Ω matched over a wide frequency range. Both the RF input and the LO (Local Oscillator) ports can be driven differentially or single-ended with minimum external impedance matching components. The LO port requires low drive levels, and optimum performance is achieved with an LO input power level of 5 dBm. The LT5522 has low port-to-port feedthrough. The LT5522 draws 56 mA of supply current at 5 V. The device is available in a 4 × 4 mm plastic flat package.