MAX2634
315MHz/433MHz Low-Noise Amplifier for Automotive RKE
Ultra-Low-Current Low-Noise Amplifier for RKE Solutions with Low-Noise Figure and Shutdown Mode
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Overview
Features and Benefits
- Optimized for 308MHz, 315MHz, 418MHz, and 433.92MHz
- 2.2V to 5.5V Supply Voltage Range
- Low Operating Supply Current
- 2.5mA (typ), 4mA (max)
- Logic-Controlled 1µA (max) Shutdown
- Typical Performance at 315MHz
- 1.25dB Noise Figure
- -16dBm Input IP3
- 15.5dB Power Gain
- Automotive Temperature Range
- -40°C to +125°C
- ESD Rating of ±2.0kV (HBM) on All Pins
- AEC-Q100 Qualification
Product Details
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 15.5dB power gain and a 1.25dB noise figure while only consuming 2.5mA 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 component count by integrating the output matching and DC-blocking components, 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
- Garage Door Openers
- Remote Keyless Entry (RKE)
- Security
- Telemetry Receivers
- Tire Pressure Monitoring Systems (TPMS)
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
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MAX2634 Reliability Data1/12/2023PDF32K
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RF Basics Guide4/12/2012
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PCBs Layout Guidelines for RF & Mixed-Signal9/14/2011
Tools & Simulations
S-Parameters
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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MAX2634 Discussions
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