A 12-bit CMOS Current Steering D/A Converter for Embedded Systems

Abstract - This paper describes the design of a 12-bit digital-to-analog converter for a wireline modem chip implemented in a 0.13tm digital CMOS technology. Transistor-level simulations from extracted layout at the nominal modem data rate of 8OMS/s show an Spurious-Free Dlynamic-Range (SFDR) better than 62dB at Nyquist rate under industrial operation conditions (-40 to 850 temperature range and +10% supply variations) and for all technology process corners. Additionally, the converter achieves a Multi-Tone Power Ratio (MTPR) higher than 59dB for different Discrete MultiTone (DMT) test patterns consisting of 1536 carriers that fall in the Nyquist band. Simulation results at a higher data rate of 200MS/s are also shown in the paper. The converter dissi

• Type: Conference
• Year: 2006
• Where: APCCAS
• Authors: Jesús Ruiz-Amaya, Manuel Delgado-Restituto, Juan Francisco Fernández-Bootello, D. Brandano, R. Castro-López, José Manuel de la Rosa
• Keywords: 12-bit Digital-to-analog Converter, APCCAS 2006, Data Rate, Hardware, Modem Data Rate