MAX2634 Datasheet | Maxim Integrated

Features o Optimized for 308MHz, 315MHz, 418MHz, and 433.92MHz o 2.2V to 5.5V Supply Voltage Range o Low Operating Supply Current 2.5m A (typ), 4m A (max) o Logic-Controlled 1µA (max) Shutdown o Typical Performance at 315MHz 1.25d B Noise Figure -16d Bm Input IP3 15.5d B Power Gain o Automotive Temperature Range -40°C to +125°C o ESD Rating of ±2.5k V (HBM) on All Pins o AEC-Q100 Qualification General Description The MAX2634 low-noise amplifier (LNA) with low-power shutdown mode is optimized for 315MHz and 433.92MHz automotive remote keyless entry (RKE) applications. At 315MHz, the LNA achieves 15.5d B power gain and a 1.25d B noise figure while only consuming 2.5m A of supply current from a 2.2V to 5.5V power supply. An integrated logic-controlled low-power shutdown mode reduces power consumption to 0.1µA and replaces the two transistors typically required to implement the shutdown function in discrete-based RKE LNA solutions. The device further reduces ponent count by integrating the output matching and DCblocking ponents, and only requires a single inductor to match the input for best noise figure and input return loss. The device is available in a small 6-pin (2.0mm x 2.2mm x 0.9mm) lead-free SC70 package for automotive applications that require visual inspection of PCB solder connections. Applications Remote Keyless Entry (RKE) Tire Pressure Monitoring Systems (TPMS) Security Garage Door Openers Telemetry Receivers TOP VIEW .. GND SHDN GND Ordering Information PART MAX2634AXT+ TEMP RANGE -40°C to +125°C PINPACKAGE 6 SC70 TOP MARK +ADG +Denotes a lead(Pb)-free/Ro HS-pliant package. Pin Configuration + 1 2 3 MAX2634 6 5 4 RFOUT VCC RFIN SC70 Functional Diagram/Typical Operating Circuit appears at end of data sheet. Performance Table FREQUENCY (MHz) 308 315 418 433.92 L1 (n H) 56 56 33 33 SUPPLY CURRENT (m A) 2.5 2.5 2.5 2.5 GAIN (d B) 15.5 15.5 13.5 13.5 NOISE FIGURE (d B) 1.25 1.25 1.25 1.25 INPUT P1d B (d Bm) -29 -29 -26 -26 INPUT IP3 (d Bm) -16 -16 -12...