TI claims industry's first 12-bit, 1-GSPS ADC with buffered input
Texas Instruments has introduced an analog-to-digital-converter (ADC) that combines 12 bits of resolution with a 1-GSPS sampling rate, effectively doubling the amount of signal bandwidth that can be captured in a single ADC. The ADS5400 offers an unmatched signal-to-noise ratio (SNR) of 59 dBFS and 75 dBc spurious-free dynamic range (SFDR) in first Nyquist, and 58 dBFS SNR and 70 dBc SFDR performance for intermediate frequencies (IFs) beyond 1000 MHz.
A fully buffered analog input isolates the onboard sample and hold’s internal switching to prevent disturbing the signal source, while providing a high-impedance input. The ADS5400’s performance enables designers to create smaller, higher-performance and higher-density wide-bandwidth receivers and digitizers.
“The ADS5400 has enabled our latest modular component, the QuiXilica Atlas-V5 VXS board, to handle 12 GB/s of data and generate a real-time result, comments Andrew Reddig, Tekmicro's president and chief technology officer. Our launch customers are using the Atlas to create higher performance solutions for critical applications that were unachievable with previous A/D technology.
“Customers can use the ADS5400's ground-breaking combination of resolution, sample rate and bandwidth to significantly enhance applications in defense by improving radar and signal intelligence (SIGINT) capabilities, and can double the capture bandwidth of signals with 12-bit resolution in test and measurement,” said Art George, senior vice president of TI's High-Performance Analog business unit.
Developed on TI’s high-speed, proprietary BiCom3 complementary bipolar SiGe technology, the monolithic ADS5400 is specified over the full industrial temperature range (-40°C to 85°C). The BiCom3 technology’s silicon-on-insulator (SOI) process makes it well suited for high-temperature and high-radiation environments.
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