Features and Benefits

  • +2.4V to +3.6V or +4.5V to +5.5V Single-Supply Operation
  • Four User-Selectable Carrier Frequencies 308, 315, 418, and 433.92MHz
  • -110dBm RF Input Sensitivity at 315MHz
  • -109dBm RF Input Sensitivity at 433.92MHz
  • Fast Startup (< 250µs)
  • Small 32-Pin TQFN Package
  • Low Operating Supply Current
    • 6.2mA Continuous
    • 20nA Power-Down
  • Integrated PLL, VCO, and Loop Filter
  • 45dB Integrated Image Rejection
  • Selectable IF BW with External Filter
  • Positive and Negative Peak Detectors
  • RSSI Output

Product Details

The MAX7042 fully integrated, low-power, CMOS superheterodyne RF receiver is designed to receive frequency-shift-keyed (FSK) data at rates up to 66kbps nonreturn-to-zero (NRZ) (33kbps Manchester). The MAX7042 requires only a few external components to realize a complete wireless RF receiver at 308, 315, 418, and 433.92MHz.

The MAX7042 includes all the active components required in a superheterodyne receiver including a low-noise amplifier (LNA), an image-rejection (IR) mixer, a fully integrated phase-locked loop (PLL), local oscillator (LO), 10.7MHz IF limiting amplifier with received-signal-strength indicator (RSSI), low-noise FM demodulator, and a 3V regulator. Differential peak-detecting data demodulators are included for baseband data recovery.

The MAX7042 is available in a 32-pin TQFN and is specified over the automotive -40°C to +125°C temperature range.


  • Home and Office Lighting Control
  • Home Automation
  • Local Telemetry Systems
  • Remote Keyless Entry (RKE)
  • Remote Sensing
  • Security Systems
  • Smoke Alarms
  • Tire-Pressure Monitoring (TPM)

Product Lifecycle icon-recommended 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)

Tools & Simulations

Design Tools

ISM-RF Baseband Calculator

ISM-RF Crystal Calculator workbook is a tool for properly selecting and configuring the reference oscillator for various industrial/scientific/medical radios.

Product Recommendations

MAX7042 Companion Parts

Recommended Related Parts

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.

Sample & Buy

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Buy Now Pricing

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List Pricing

(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


Lead Times

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Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.