Texas Instruments Delivers High-Speed Data Converter for Communications and Imaging Applications
Device provides high-performance signal conversion with 12-bit resolution and 80Msps operation
TUCSON, Ariz. (Jan. 3, 2001) --Texas Instruments Incorporated (NYSE: TXN) today announced a 12-bit, 80Msps analog-to-digital converter (ADC) from the company's Burr-Brown product line, which provides high-performance signal conversion for communications and medical imaging systems. See http://www.ti.com/sc/aap5497u.
The ADS809 is ideal for signal chain applications in base stations, wireless local loop (WLL), and cable modems, as well as for high-speed power control loops found in fiber optic (DWDM) and wireless communications systems.
"The ADS809 offers designers a winning solution for the sampling of wideband signals in high-performance communications systems. In addition, this device provides high-quality signal conversion required in medical imaging applications." said Ed Fullman, product marketing manager of Burr-Brown High-Speed products from TI. "The ADS809 sets a new 12-bit performance point for Texas Instruments, allowing access to a variety of next-generation segments of the communications and imaging markets."
The ADS809 features a high-bandwidth linear track/hold (1GHz) that gives excellent spurious performance up to and beyond the Nyquist rate, with a low jitter of only 0.25ps rms (leading to excellent signal-to-noise performance).
The device provides dramatic flexibility by offering 1Vp-p and 2Vp-p input ranges and the ability to accept either differential or single ended inputs. The device offers 65dB SNR (signal-to-noise ratio) and 68dB SFDR (spurious free dynamic range) with a 10MHz input signal. An over-range flag indicates when the input signal has exceeded the converter's full-scale range. This flag can also be used to reduce the gain of the front end signal conditioning circuitry.
The clock input can accept a low-level differential sine wave or square wave signal down to 0.5Vp-p, further improving the SNR performance. It also accepts a single-ended and differential clock signal and has flexible threshold levels.
Available Today
The ADS809 is available now and is packaged in a TQFP-48. It is priced from $29.95 in 1,000 piece quantities.
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