TI Introduces Industry’s Fastest 14-bit ADC at 400 MSPS
High Speed and Resolution Combine with Exceptional Performance for Wide-Bandwidth Applications
Enabled by TI’s proprietary BiCom3 process technology, the ADS5474 integrates an on-chip buffer amplifier to ease analog front-end (AFE) design. The buffer amplifier eliminates sample-and-hold kick-back 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 200 MHz. Additionally, the ADS5474 is pin-for-pin compatible to the ADS5463 12-bit, 500-MSPS ADC, in a space-saving 14-mm x 14-mm package, providing an easy design path across multiple systems using TI ADCs.
The 400-MSPS sample rate provided by the ADS5474 with 70-dBFS signal-to-noise ratio (SNR) through first Nyquist and 69-dBFS SNR through second Nyquist offers a number of benefits to the customer in these applications:
- Improves transmit power amplifier linearization and efficiency when used in conjunction with a digital pre-distortion algorithm, lowering total system cost
- Enables sampling of larger bandwidths in radar systems, resulting in enhanced tracking resolution and object discrimination
- Allows software-defined radios to implement a greater number of standards with higher sensitivity
- Enables 14-bit resolution with 200-MHz bandwidth for high-speed digitizers, spectrum analyzers, test and measurement equipment and general data acquisition systems
TI further eases customers’ designs with the entire high-performance signal chain offering. For example, customers are able to combine the ADS5474 with a TI high-speed amplifier (such as THS4520, THS4509 or THS9001) and clock synchronizer and jitter cleaner (CDCM7005). In addition, systems solutions will benefit from TI’s portfolio of high performance digital-to-analog converters, RF solutions, and digital up and down converters.
Availability and Packaging The ADS5474 is available now in an 80-pin TQFP PowerPAD™ package (14 mm x 14mm) and is priced at $150.00 each in 1,000-piece quantities. Samples and evaluation modules (EVMs) are available from http://dataconverter.ti.com.
TI offers analog engineers a wide-ranging support infrastructure that includes training and seminars, design tools and utilities, technical documentation, evaluation modules, an online KnowledgeBase, a product information hotline and a comprehensive offering of samples that ship within 24 hours of request. For more information on TI’s complete analog design support, and to download the latest Amplifier and Data Converter Selection Guide, visit www.ti.com/analogelab.
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