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Atmel DAC offers 1.2Gsps clock frequency

Posted: 09 Aug 2004 ?? ?Print Version ?Bookmark and Share

Keywords:atmel? digital-to-analog converter? dac? ts86101g2b?

Atmel Corp. released a 10-bit DAC that features a clock frequency of 1.2Gsps. Andrew Benn, the company's marketing manager for its Broadband Data Conversion product line, said "The TS86101G2B combines unprecedented dynamic performance over the first and third Nyquist zones with user friendly features."

The new device is claimed to provide a higher linearity and dynamic range than other 12-bit or 14-bit DACs on the market in the 1Gsps range. The Integral Non Linearity (INL) is 0.25LSB, the Noise Power Ratio (NPR) over a 550MHz broadband pattern is 49dB at 1.2Gsps (9.5 equivalent bits) and the Spurious Free Dynamic Range (SFDR) is >69dBFS in the first Nyquist zone and >63dBFS in the third Nyquist zone. According to the company, the embedded 4:1 multiplexer does not impact the performance in any way, with all clock-related spurs remaining at a nonsignificant low level.

Aside from the multiplexer, the TS86101G2B also features a delay programmable clock that enables synchronization of the MUXDAC with the circuit sending the digital data. Available for sampling, the DAC is delivered in a CBGA255 package and is priced at $495 per 1,000-piece quantity.

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