Hittite Microwave's two new mixers with integrated LO driver amplifiers require only 0 dBm of LO drive. These GaAs MMIC mixers for Cellular/PCS/3G Infrastructure, Fixed Wireless and point-to-point applications can be driven directly from the output of a standard frequency synthesizer. With an RF frequency range of 1,7-2,2 GHz and an IF frequency range of 50-300 MHz, the HMC485MS8G will satisfy many UMTS/PCS transmit or receive frequency plans configured for low side LO. The input IP3 performance of +34 dBm for down conversion and +27 dBm for up conversion is achieved from only 0 dBm of LO drive. The manufacturer says high P1dB of +20 dBm rivals traditional active FET mixers while offering a smaller standard IC footprint. The HMC488MS8G covers an RF and LO Frequency range of 4,0-7,0 GHz. It offers a wide IF range of DC-2500 MHz.
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Analogue, Mixed Signal, LSI
The MAX49925 from Analogue Devices is a bidirectional current-sense amplifier (CSA) with an input common-mode range that extends from -40 to 76 V, making it suitable for 48 V HEV applications where there are large automotive transients.
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