Analog Devices MAX5866 Product Info

• Integrated Dual, 8-Bit ADCs and Dual, 10-Bit DACs
• Ultra-Low Power
  • 80mW at f_CLK = 60MHz (R_x Mode)
  • 52.5mW at f_CLK = 60MHz (T_x Mode)
  • Low-Current Idle and Shutdown Modes
• Excellent Dynamic Performance
  • 48dB SINAD at f_IN = 25MHz (ADC)
  • 64.2dBc SFDR at f_OUT = 6MHz (DAC)
• Excellent Gain/Phase Match
  • ±0.2° Phase, ±0.05dB Gain at f_IN = 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

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 1V_P-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 f_IN = 25MHz and f_CLK = 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 f_OUT = 6MHz and f_CLK = 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 f_CLK = 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.

Applications

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