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This paper describes the design of a 12-bit digital-to-analog converter for a wireline modem chip implemented in a 0.13mum digital CMOS technology. Transistor-level simulations from extracted layout at the nominal modem data rate of 80MS/s show an spurious-free dynamic-range (SFDR) better than 62dB at Nyquist rate under industrial operation conditions (-40 to 85deg temperature range and plusmn10%...
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