As part of a new series of high speed A/D converters, Analog Devices has launched the AD9208, said to be targeted at GHz bandwidth applications, where it meets the spectral efficiency demands of 4G/5G multi-band wireless communications base stations.
Fabricated on a 28nm CMOS process, the device is said to address multi-standard production instrumentation, as well as providing greater detection range and sensitivity for defence applications.
The dual 14bit part is optimised for wide input bandwidth, high sampling rate, high linearity and low power. Supplied in a small package with an industry standard interface, the device is said to offer designers flexibility in selecting processor platforms and signal processing partitioning.
Sampling at rates of up to 3Gsample/s, the A/D converter enables direct RF signal processing architectures and provides high oversampling. This, the company notes, simplifies front end filtering and receiver design complexity, whilst reducing system cost.
According to ADI, the AD9208 enables direct RF sampling of wideband signals at frequencies of more than 6GHz, meaning mixer stages can be eliminated. Other features include an internal clock divider and an optional RF clock output.
Supplied in a 196ball BGA measuring 12 x 12mm, the AD9208 is specified for use in temperatures ranging from -40 to 85°C.
Also introduced is the AD9172, a dual 16bit D/A converter that can sample at rates of up to 12Gsample/s. It features an eight lane, 15Gbit/s JESD204B data input port, an onchip clock multiplier and digital signal processing capabilities targeted at single- and multiband direct to RF wireless applications.
The AD9172 comes in a 144ball BGA_ED with a metal enhanced thermal lid. The package measures 10 x 10mm and the balls are on a 0.8mm pitch.
Applications for both parts include communications, test and measurement, aerospace and defence, and automotive.
Author
Graham Pitcher
Source: www.newelectronics.co.uk