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DC2090A - LTC6430-15 Demo Board | 50MHz to 1200MHz Parallel Connected, Boosted OIP3, ADC/IF Amplifier

Demonstration circuit 2090A features two LTC®6430-15s differential ADC/IF Amplifier connected in parallel at the inputs and outputs, boosting the output third order intercept point (OIP3) and the output power each by about 3dB higher. The parallel connection reduces the differential input and output impedance by one-half so the composite amplifier has 50Ω differential input and output impedances, this demo circuit uses 1:1 balun transformers to convert the differential I/O impedances to 50Ω single-ended so that the DC2090A can be easily evaluated with most RF test equipment.

DC2090A - Schematic