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ADI unveils 16bit, 310 MSPS dual ADC

Posted: 29 May 2014     Print Version  Bookmark and Share

Keywords:Analog Devices  ADC  communications receiver  radar  RF test 

Analog Devices Inc. (ADI) has announced a 16bit, 310 MSPS dual A/D converter (ADC) geared to support the more demanding high-speed signal processing applications that require exceptional linearity and noise performance over a wide input frequency range. According to the company, the AD9652 can digitise up to 155MHz of signal bandwidth and provides an analog input bandwidth of 650MHz.

The high performance input buffer and 16bit ADC core provide the high linearity and noise performance necessary to detect and isolate weak signals in the presence of large signals, blockers and spectral clutter. This can simplify the signal chain and move more of the system control, configuration and tuning into the software domain. Target applications for the AD9652 include multi-mode, multi-band, communications receivers, radar and RF test equipment.

AD9652

The AD9652 supports input clock frequencies up to 1.24GHz with an integer 1-to-8 clock divider used to generate the ADC sample clock. A duty cycle stabiliser is provided to compensate for variations in the ADC clock duty cycle. The 16bit output data (with an over-range bit) from each ADC is interleaved onto a single LVDS output port along with a double data rate clock. Programming for setup and control are accomplished using a 3-wire SPI-compatible serial interface.

The AD9652's dual ADC cores feature a multistage, pipelined architecture with integrated output error correction logic. A high performance on-chip buffer and internal voltage reference is used to simplify the interface to external driving circuitry while preserving exceptional dynamic performance.

The AD9652-310 is available in 144-CSPBGA packaging for $231.25 each in 1,000 quantities. The AD9652-310EBZ is available for $395 each in 1,000 quantities. Complementary ADI signal chain components include the ADA4938-2 dual ultra-low distortion A/D converter driver amplifier, and the ADL5565 high performance differential amplifier optimised for RF and IF applications.





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