GENERAL DESCRIPTION

The AD9714/AD9715/AD9716/AD9717 are pin-compatible dual, 8-/10-/12-/14-bit, low power digital-to-analog converters (DACs) that provide a sample rate of 125 MSPS. These TxDAC® converters are optimized for the transmit signal path of communication systems. All the devices share the same interface, LFCSP package, and pinout, providing an upward or downward component selection path based on performance, resolution, and cost. The AD9714/AD9715/AD9716/AD9717 offer exceptional ac and dc performance and support update rates up to 125 MSPS. The flexible power supply operating range of 1.8 V to 3.3 V and low power dissipation of the AD9714/AD9715/AD9716/AD9717 make them well-suited for portable and low power applications.

FEATURES

  Power dissipation @ 3.3 V, 2 mA output

     37 mW @ 10 MSPS

     80 mW @ 125 MSPS

  Sleep mode: <3 mW @ 3.3 V

  Supply voltage: 1.8 V to 3.3 V

  SFDR to Nyquist

     84 dBc @ 1 MHz output

     75 dBc @ 10 MHz output

  AD9717 NSD @ 1 MHz output, 125 MSPS, 2 mA: −151 dBc/Hz

  Differential current outputs: 1 mA to 4 mA

  Two on-chip auxiliary DACs

  CMOS inputs with single-port operation

  Output common mode: adjustable 0 V to 1.2 V

  Small footprint 40-lead LFCSP Pb-free package

APPLICATIONS

  Wireless infrastructures

     Picocell, femtocell base stations

  Medical instrumentation

     Ultrasound transducer excitation

  Portable instrumentation

     Signal generators, arbitrary waveform generators