Name
Title | ||
|---|---|---|
A 75 MHz BW 68dB DR CT-Sigma Delta Modulator with Single Amplifier Biquad Filter and A Broadband Low-power Common-gate Summing Technique |
Abstract | ||
|---|---|---|
A wide bandwidth, power efficient continuous-time Sigma Delta modulator (CT Sigma Delta M) is presented. The modulator introduces a 3rd order filter implemented with a lossless integrator and a multiple-feedback (MFB) single-amplifier biquad (SAB) with embedded loop stability compensation. An active summing block is implemented with a common-gate amplifier followed by a transimpedance amplifier (TIA) that achieves optimum bandwidth (BW) vs power consumption tradeoff, making it suitable for over GHz operation. Fabricated in 40 nm CMOS, and clocked at 3.2 GHz, the CT Sigma Delta M achieves a signal-to-noise and distortion ratio (SNDR) of 64.9 dB over 75 MHz BW while consuming 22.8 mW of power. The obtained Walden's Figure of Merit (FoM) is 106 fJ/conv-step. |
Year | Venue | Field |
|---|---|---|
2015 | Symposium on VLSI Circuits-Digest of Papers | Digital biquad filter,Computer science,Integrator,CMOS,Electronic engineering,Figure of merit,Transimpedance amplifier,Common gate,Electrical engineering,Power bandwidth,Amplifier |
DocType | Citations | PageRank |
Conference | 1 | 0.43 |
References | Authors | |
0 | 5 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Carlos Briseno-Vidrios | 1 | 5 | 3.31 |
| Alexander Edward | 2 | 9 | 3.15 |
| Ayman Shafik | 3 | 71 | 9.73 |
| Samuel Palermo | 4 | 142 | 22.07 |
| Jose Silva-Martinez | 5 | 630 | 86.56 |