Features and Benefits

  • Integrated Dual, 8-Bit ADCs and Dual, 10-Bit DACs
  • Ultra-Low Power
    • 80mW at fCLK = 60MHz (Rx Mode)
    • 52.5mW at fCLK = 60MHz (Tx Mode)
    • Low-Current Idle and Shutdown Modes
  • Excellent Dynamic Performance
    • 48dB SINAD at fIN = 25MHz (ADC)
    • 64.2dBc SFDR at fOUT = 6MHz (DAC)
  • Excellent Gain/Phase Match
    • ±0.2° Phase, ±0.05dB Gain at fIN = 25MHz (ADC)
  • Internal/External Reference Option
  • +2.7V to +3.3V Digital Output Level (TTL/CMOS Compatible)
  • Multiplexed Parallel Digital Input/Output for ADCs/DACs
  • Miniature 48-Pin Thin QFN Package (7mm x 7mm)
  • Evaluation Kit Available (Order MAX5865EVKIT)

Product Details

The MAX5866 ultra-low-power, highly integrated analog front end is ideal for portable communication equipment such as handsets, PDAs, WLAN, and 3G wireless terminals. The MAX5866 integrates dual, 8-bit receive ADCs and dual, 10-bit transmit DACs while providing the highest dynamic performance at ultra-low power. The ADCs' analog I-Q input amplifiers are fully differential and accept 1VP-P full-scale signals. Typical I-Q channel phase matching is ±0.2° and amplitude matching is ±0.05dB. The ADCs feature 48dB SINAD and 70.1dBc spurious-free dynamic range (SFDR) at fIN = 25MHz and fCLK = 60MHz. The DACs' analog I-Q outputs are fully differential with ±400mV full-scale output, and 1.4V common-mode level. Typical I-Q channel phase matching is ±0.4° and gain matching is ±0.1dB. The DACs also feature dual, 10-bit resolution with 64.2dBc SFDR, at fOUT = 6MHz and fCLK = 60MHz.

The ADCs and DACs operate simultaneously or independently for frequency-division duplex (FDD) and time-division duplex (TDD) modes. A 3-wire serial interface controls power-down and transceiver modes of operation. The typical operating power is 96mW at fCLK = 60MHz with the ADCs and DACs operating simultaneously in transceiver mode. The MAX5866 features an internal 1.024V voltage reference that is stable over the entire operating power-supply range and temperature range. The MAX5866 operates on a +2.7V to +3.3V analog power supply and a +2.7V to +3.3V digital I/O power supply for logic compatibility. The quiescent current is 12mA in idle mode and 1µA in shutdown mode. The MAX5866 is specified for the extended (-40°C to +85°C) temperature range and is available in a 48-pin thin QFN package. See a parametric table of the complete family of pin-compatible AFEs.


  • 3G Wireless Terminals
  • Fixed/Mobile Broadband Wireless Modems
  • Narrowband/Wideband CDMA Handsets and PDAs
  • VSAT Modems

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 (4)

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MAX5866 Companion Parts

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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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