Product category:
Analogue and Mixed Signal ICs
News Release from: Texas Instruments (April 2006-) | Subject: ADS5474
Edited by the Electronicstalk Editorial
Team on 08 August 2007
14bit A/D convertor takes speed record
ADC enables 14bit resolution with 200MHz bandwidth for high-speed digitisers, spectrum analysers, test and measurement equipment and general data acquisition systems.
At 400Msample/s, Texas Instruments reckons its latest 14bit A/D convertor is the industry's fastest The new ADC provides unmatched performance of 11.1 effective number of bits (ENOB) at this speed, enabling high-bandwidth applications such as test and measurement instrumentation, software-defined radio, radar systems and communication instrumentation that were previously confined to lesser resolution ADCs
This article was originally published on Electronicstalk on 4 Apr 2006 at 8.00am (UK)
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Enabled by TI's proprietary BiCom3 process technology, the ADS5474 integrates an on-chip buffer amplifier to ease analogue front-end (AFE) design.
The buffer amplifier eliminates sample-and-hold kickback and provides a high input impedance over time and frequency, simplifying the AFE design for wide bandwidth applications from DC to intermediate frequencies (IF) well above 200MHz.
Additionally, the ADS5474 is pin-for-pin compatible to the ADS5463 12bit, 500Msample/s ADC, in a space-saving 14 x 14mm package, providing an easy design path across multiple systems using TI ADCs.
The 400Msample/s sample rate provided by the ADS5474 with 70dB full-scale signal/noise ratio (SNR) through first Nyquist and 69dB full-scale SNR through second Nyquist offers a number of benefits to the customer in several applications.
It improves transmit power amplifier linearisation and efficiency when used in conjunction with a digital predistortion algorithm, lowering total system cost.
It enables sampling of larger bandwidths in radar systems, resulting in enhanced tracking resolution and object discrimination.
It allows software-defined radios to implement a greater number of standards with higher sensitivity.
And it enables 14bit resolution with 200MHz bandwidth for high-speed digitisers, spectrum analysers, test and measurement equipment and general data acquisition systems.
The ADS5474 is available now in an 80-pin TQFP PowerPAD package and is priced at US $150.00 each in 1000-piece quantities.
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