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13-bit A/D converter boosts receiver performance

Dallas — Texas Instruments Inc.'s 13-bit analog-to-digital converter (A/D converter) features 68 dB signal-to-noise ratio (SNR) and 79 dB spurious-free dynamic range (SFDR), at the maximum sample rate of 210 megasamples/second and an input frequency of 230 MHz.

This breakthrough dynamic performance, achieved via TI's high-speed BiCom-III complementary bipolar silicon-germanium (SiGe) process, enables improved receiver performance in software defined radios, basestation power amplifier linearization systems, as well as test and measurement systems, said Roberto Sadkowski, business unit manager for TI’s high-speed A/D converters.

The A/D converter operates from a 5-V supply, while providing low-voltage differential signaling (LVDS)-compatible digital outputs from a 3.3-V supply. In addition, an internal reference and input buffer simplifies system design requirements. The device is specified over the industrial temperature range of -40°C to +85°C.

The ADS5440 is sampling now, with volume production scheduled for 4Q. The device comes in an 80-pin TQFP PowerPad package and is priced at $65.00 in 1,000- piece quantities. EVMs are also available. Click here for the ADS5440 data sheet.

Texas Instruments , 1-800-477-8924, www.TI.com.


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