Low-Noise, 2.5GHz Downconverter Mixer

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The MAX2690 is a miniature, low-noise, low-power downconverter mixer designed for use in portable consumer equipment. Signals at the RF input port are mixed with signals at the local-oscillator (LO) port using a double-balanced mixer. The RF port frequency range is 400MHz to 2500MHz. The LO port frequency range is 700MHz to 2500MHz. The IF frequency range is 10MHz to 500MHz, provided the LO and RF frequencies are chosen appropriately.

The IF port is differential, which provides good linearity and low LO emissions, as well as providing compatibility with applications using differential IF filters, such as CDMA cellular phones. The mixer noise figure is 10dB at 900MHz.

The MAX2690 draws 16mA at VCC = 3V and operates from a +2.7V to +5.5V supply. A logic-controlled shutdown mode reduces the supply current to less than 1µA, making it ideal for battery-operated equipment. This device is offered in a miniature 10-pin µMAX package.
MAX2690: Typical Operating Circuit MAX2690: Typical Operating Circuit Enlarge+

Key Features

  • 7.6dBm Input Third-Order Intercept Point
  • 10dB Downconverter Mixer Noise Figure
  • 7.9dB Gain
  • 400MHz to 2500MHz Wideband Operation
  • Low Cost
  • +2.7V to +5.5V Single-Supply Operation
  • < 1µA Shutdown Mode
  • Ultra-Small 10-Pin µMAX Package


  • 2.45GHz Industrial-Scientific-Medical (ISM)
  • Band Radios
  • Cell Phones/Cordless Phones
  • Code-Division Multiple Access (CDMA)
  • Communication Systems
  • Handheld Radios
  • Personal Communications Systems (PCS)
  • Wireless Local Area Networks (WLANs)
Part NumberChannelsRF Freq.
RF Freq.
LO Freq.
LO Freq.
IF Freq.
IF Freq.
Input IP3
Noise Figure
3.3V Supply Current
(mm x mm)
minmaxminmaxminmaxSee Notes
MAX2690 140025007002500105007.97.6102.7 to 5.5163.0 x 5.0
$1.78 @1k
See All Downconverter Mixers (30)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Technical Documents

Tutorial 5100 General Layout Guidelines for RF and Mixed-Signal PCBs
App Note 806 RF ICs for 3.5GHz WLL Transceivers

Quality and Environmental Data

Request Reliability Report for: MAX2690 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • MAX2690EUB+
  • MAX2690EUB+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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