Back to Search
Start Over
A 1-GHz, multibit, continuous-time, delta–sigma ADC for Gigabit Ethernet
- Source :
-
Microelectronics Journal . Dec2008, Vol. 39 Issue 12, p1642-1648. 7p. - Publication Year :
- 2008
-
Abstract
- Abstract: In this work the design of a continuous-time modulator for Gigabit Ethernet applications is presented. The input bandwidth and oversampling ratio are, respectively, 62.5MHz and 8, resulting in a clock frequency of 1GHz. It was designed and implemented in a standard 90nm CMOS technology. The active area of the modulator measures . It consists of a loop filter based on RC-opamp integrators and a 3-bit quantizer which includes a data weighted averaging scrambler. A digital tuning scheme to deal with process variations has also been included. System level simulations including several non-ideal effects have been carried out in order to determine in detail the performance of the converter. Experimental results show a resolution of 7.1 effective bits, and a power consumption of 10.8mW from a nominal power supply of 1V. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00262692
- Volume :
- 39
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Microelectronics Journal
- Publication Type :
- Academic Journal
- Accession number :
- 35331102
- Full Text :
- https://doi.org/10.1016/j.mejo.2008.03.011