Low-noise, high-accuracy single-ended input stage for continuous-time sigma delta (CTSD) analog-to-digital converter (ADC)
US11545996B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2021 |
| Grant date | Jan 3, 2023 |
| Priority date | — |
| Expiry date | Aug 24, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/742
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Systems, devices, and methods related to low-noise, high-accuracy single-ended continuous-time sigma-delta (CTSD) analog-to-digital converter (ADC) are provided. An example single-ended CTSD ADC includes a pair of input nodes to receive a single-ended input signal and input circuitry. The input circuitry includes a pair of switches, each coupled to one of the pair of input nodes; and an amplifier to provide a common mode signal at a pair of first nodes, each before one of the pair of switches. The single-ended CTSD ADC further includes digital-to-analog converter (DAC) circuitry; and integrator circuitry coupled to the input circuitry and the DAC circuitry via a pair of second nodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.