The MAX2634 low-noise amplifier is optimized for remote keyless-entry and tire-pressure-monitoring applications operating in the 315- and 433-MHz bands. Features include a noise figure of 1.25 dB, a current consumption of 2.5 mA typ, a supply voltage of 2.2 to 5.5 V, and a temperature range of –40° to 125°C.
Housed in a 6-pin SC70 package, the LNA is fully qualified to meet the certification requirements of the AEC-Q100 standard. The MAX2634 features a logic-enabled shutdown mode that reduces supply current to less than 1 µA, thus eliminating the two discrete transistors typically required to implement a shutdown function. Furthermore, this LNA removes the need for external dc-blocking capacitors. (From $0.50 ea/1,000; evaluation kit, $50 — available now.)
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