Name
Title | ||
|---|---|---|
A 1 Mhz Bandwidth, Filtering Continuous-Time Delta-Sigma Adc With 36 Dbfs Out-Of-Band Iip3 And 76 Db Sndr |
Abstract | ||
|---|---|---|
The high dynamic range of CT Delta Sigma Ms used in wireless receivers, needed to accommodate large out-of-band interferers, can be reduced by using a filter up front. Embedding the filter inside the modulator loop is more power efficient. Prior work has embedded a Tow-Thomas biquad inside the ADC. We show that using a Rauch filter instead yields higher out-of-band linearity (for the same power dissipation) due to the passive-RC filtering inherent in the Rauch structure. The theory is borne out by measurements from a 1 MHz bandwidth CT Delta Sigma M with an embedded second-order Rauch filter, achieving 76 dB SNDR and 36 dBFS out-of-band IIP3 while consuming 2.2 mW in a 65 nm CMOS process(1). |
Year | Venue | DocType |
|---|---|---|
2018 | 2018 IEEE CUSTOM INTEGRATED CIRCUITS CONFERENCE (CICC) | Conference |
Citations | PageRank | References |
0 | 0.34 | 0 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Saravana Manivannan | 1 | 1 | 2.06 |
| Shanthi Pavan | 2 | 391 | 87.81 |