D/A Converter based on 28nm Process, Caters to the Next Wave of Software Defined Systems

Analog Devices, as part of a new series of high speed digital-to-analog converters (D/A converters) have introduced a new D/A converter based on a 28 nm process.

The AD9172 is a dual 16-bit, 12 GSPS enabled converter that provides direct-to-RF synthesis up to 6 GHz, eliminating the IF-to-RF up-conversion stage and LO generation. This simplifies the overall RF signal chain and lowers overall system cost. The AD9172 maintains superior linearity and noise performance across these RF frequencies providing system architects with the highest level of configurability.

It provides the increased spectral efficiency needed for 4G/5G multi-band wireless communication base stations and 2 GHz E-band microwave point-to-point backhaul platforms. In addition to this, the converter can be used for defense electronics requiring a greater detection range.

Based on 28-nanometer CMOS technology, the device sets new performance benchmarks as it provides best-in class dynamic range, signal bandwidth, and low power consumption unmatched by alternative solutions.

TheD/A Converter has an independent numerically controlled oscillator (NCO), digital gain control, and various interpolation filter combinations per input channel that provide designers with a rich suite of signal processing options to allow flexible signal chain partitioning between the analog and digital domains further enabling system designers to develop software defined platforms.

AD9172 Product Highlights

  • Supports single-band and multi-band wireless applications with 3 by-passable complex data input channels per RF DAC at a max complex input data rate of 1.5 GSPS. Single independent NCO per input channel.
  • Selectable interpolation filters provides up to 8x configurable data channel interpolation and up to 12x configurable final interpolation to support a complete set of input data rates.
  • Final 48-bit NCO that operates at the DAC rate to support frequency synthesis up to 6 GHz.
  • Flexible 8-lane 15 Gbps JESD204B (subclass 0 and1) interface that also supports 12-bit high density mode for increased data throughput.
  • High performance, low noise on-chip phase-locked loop (PLL) clock multiplier supports 12 GSPS DAC update rate and provides an observation ADC clock driver with selectable divide ratios.

The AD9172 is currently available in a packaging of 10 mm x 10 mm 144-ball BGA-ED. Analog Devices will be demonstrating it with the complete new A/D converter portfolio at the upcoming International Microwave Symposium from June 4 – June 9, 2017 in Honolulu.

ADI has also released an analog-to-digital converter (A/D converter) based on the 28nm process. Click here to learn about this product.