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New 16-Bit ADCs focus on high performance, wide bandwidths and ease of use

October 04, 2010 | Paul Buckley | 222901555
New 16-Bit ADCs focus on high performance, wide bandwidths and ease of use Talking to Paul Buckley, EE Times Europe Power Management’s editor, Jon Hall Analog Devices’ Strategic Marketing & Applications Manager High Speed Converters, explains the key features and benefits of the AD9467 16-Bit ADC.
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Aiming to take signal processing performance for communications, test and measurement and defense electronics applications to a new level Analog Devices, Inc., (ADI) recently released a 16-bit analog-to-digital converter (ADC) which the company claims now makes the device the industrys fastest ADC.

The new AD9467 ADC features a maximum sampling rate of 250 MSPS which ADI claims is up to 25% faster than its nearest rival. In addition, the company is also claiming power savings of up to 40% for the new 16-bit ADC.

Claiming a high spurious-free dynamic range (SFDR) of up to 100 dBFs (90 dBFs up to 300 MHz) the AD9467 is also offering a signal-to-noise ratio (SNR) performance of 76.4 dBFS.

The new ADC is initially targeting applications such as radar systems, spectrum analyzers and multi-carrier, multi-mode receiver designs for wireless infrastructure equipment that are defined by high resolution and throughput. The devices SFDR performance and 60-femtosecond rms jitter allow engineers to increase system performance even as they reduce the size of their equipment.



EE Times Europe: What are the key features and benefits of the new high performance 16-bit ADC?

Hall: The device is the first 16-bit 250 MSPS ADC out there. We are actually offering two speed grades. One operates at 200 MSPS and one is at 250 MSPS. They have also been optimized from a power and performance stand point.

Our linearity, which translates to high frequency SFDR, is able to support a higher IF sampling range than our nearest competitor (an 11 dB improvement at 170 MHz input) while still maintaining a high performance.

What the AD9467 also brings to the table is 76.4 dBFs SNR, high spurious free dynamic range (SFDR) at 100dBFs and very good aperture jitter (60 fsec RMS jitter) that helps with IF sampling or supporting higher input frequencies.
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