GENERAL DESCRIPTION

The AD9114/AD9115/AD9116/AD9117 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, and pinout, providing an upward or downward component selection path based on performance, resolution, and cost.

FEATURES

Power dissipation @ 3.3 V, 20 mA output 191 mW @ 10 MSPS 232 mW @ 125 MSPS

Sleep mode: <3 mW @ 3.3 V

Supply voltage: 1.8 V to 3.3 V

SFDR to Nyquist 86 dBc @ 1 MHz output 85 dBc @ 10 MHz output

AD9117 NSD @ 1 MHz output, 125 MSPS, 20mA: −162 dBc/Hz

Differential current outputs: 4 mA to 20 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