A 12-bit CMOS Current Steering D/A Converter for Embedded Systems
This paper describes the design of a 12-bit digital-to-analog converter for a wireline modem chip implemented in a 0.13μm digital CMOS technology. Transistor-level simulations from extracted layout at the nominal modem data rate of 8OMS/s show an Spurious-Free Dynamic-Range (SFDR) better than 62dB a...
| Authors: | , , , , , |
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| Format: | article |
| Publication Date: | 2006 |
| Country: | España |
| Institution: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repository: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/3767 |
| Online Access: | http://hdl.handle.net/10261/3767 |
| Access Level: | Open access |
| Keyword: | Digital-to-Analog Converters Current Steering |
| Summary: | This paper describes the design of a 12-bit digital-to-analog converter for a wireline modem chip implemented in a 0.13μm digital CMOS technology. Transistor-level simulations from extracted layout at the nominal modem data rate of 8OMS/s show an Spurious-Free Dynamic-Range (SFDR) better than 62dB at Nyquist rate under industrial operation conditions (-40 to 85º 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 dissipates less than 150mW from a mixed 3.3/1.2V supply and occupies less than 1.7mm2. |
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