SiGe, High-Linearity, 2300MHz to 4000MHz Upconversion/Downconversion Mixer with LO Buffer

Lowest Noise, Highest Linearity 2.3GHz to 4.0GHz SiGe Mixer for LTE, WiMAX, and MMDS Base Stations, Featuring Superior Input IP3, NF, and 2 x 2 Performance

Please check latest availability status for a specific part variant.


The MAX2044 single, high-linearity upconversion/downconversion mixer provides +32.5dBm input IP3, 8.5dB noise figure, and 7.7dB conversion loss for 2300MHz to 4000MHz LTE, WiMAX™, and MMDS wireless infrastructure applications. With an ultra-wide LO frequency range of 2600MHz to 4300MHz, the MAX2044 can be used in either low-side or high-side LO injection architectures for virtually all 2.5GHz and 3.5GHz applications.

In addition to offering excellent linearity and noise performance, the MAX2044 also yields a high level of component integration. This device includes a double-balanced passive mixer core, an LO buffer, and on-chip baluns that allow for single-ended RF and LO inputs. The MAX2044 requires a nominal LO drive of 0dBm, and supply current is typically 138mA at VCC = 5.0V or 121mA at VCC = 3.3V.

The MAX2044 is pin similar with the MAX2029/MAX2031 650MHz to 1000MHz mixers and the MAX2039/MAX2041/MAX2042 1700MHz to 3000MHz mixers, making this entire family of up/downconverters ideal for applications where a common PCB layout is used for multiple frequency bands.

The MAX2044 is available in a compact 20-pin thin QFN (5mm x 5mm) package with an exposed pad. Electrical performance is guaranteed over the extended -40°C to +85°C temperature range.
MAX2044: Typical Application Circuit MAX2044: Typical Application Circuit Enlarge+

Key Features

  • 2300MHz to 4000MHz RF Frequency Range
  • 2600MHz to 4300MHz LO Frequency Range
  • 50MHz to 500MHz IF Frequency Range
  • 7.7dB Conversion Loss
  • 8.5dB Noise Figure
  • +32.5dBm Typical Input IP3
  • 21dBm Typical Input 1dB Compression Point
  • 68dBc Typical 2RF - 2LO Spurious Rejection at PRF = -10dBm
  • Integrated LO Buffer
  • Integrated RF and LO Baluns for Single-Ended Inputs
  • Low -3dBm to +3dBm LO Drive
  • Pin Similar with the MAX2029/MAX2031 Series of 650MHz to 1000MHz Mixers and the MAX2039/MAX2041/MAX2042 Series of 1700MHz to 3000MHz Mixers
  • Single 5.0V or 3.3V Supply
  • External Current-Setting Resistor Provides Option for Operating Device in Reduced-Power/Reduced-Performance Mode


  • 2.5GHz WiMAX and LTE Base Stations
  • 2.7GHz MMDS Base Stations
  • 3.5GHz WiMAX and LTE Base Stations
  • Fixed Broadband Wireless Access
  • Military Systems
  • Private Mobile Radios
  • Wireless Local Loop

See parametric specs for Downconverter Mixers (27)

Part NumberChannelsRF Freq.
RF Freq.
LO Frequency
LO Frequency
IF Frequency
IF Frequency
Input IP3
Noise Figure
2RF-2LO/ 2LO-2RF
3.3V Supply Current
5V Supply Current
(mm x mm)
MAX2044 1230040002600430050500-7.732.58.5683.0 to 5.251211385.0 x 5.0

See parametric specs for Upconverter Mixers (12)

Part NumberGain
Input IP3
LO +/-2IF
LO +/-3IF
LO Leakage at RF
Output Noise Floor
3.3V Supply Current
5V Supply Current
MAX2044 -7.733.560.278.2-28.5-165121138
See Data Sheet

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
Request Reliability Report for: MAX2044 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

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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