Programmable sequence controller for successive approximation register analog to digital converter
US10263629B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2018 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | May 29, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/466
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The disclosure includes an analog to digital converter (ADC) comprising a successive approximation register (SAR) unit including a capacitive network to take a sample of an analog signal and a comparator to approximate a digital value based on the analog signal sample via successive comparison. The disclosure also includes a programmable sequencer. The sequencer includes a control memory containing control signal states indicating control signals to operate the SAR unit. The sequencer also includes a program memory including sequence instructions defining a duty cycle for the SAR unit by referencing the control signal states in the control memory. The sequencer also includes a processing circuit to apply control signals according to the control signal states in an order defined by the sequence instructions to manage a sequence of operations at the SAR unit according to the duty cycle to control the ADC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.