http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112737585-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1bd18ecb293dd708a732fa5d5b2f286d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03M1-1033 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03M1-10 |
| filingDate | 2020-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_545c5951f45a8515e3912eed5320fd97 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_93073ea142efaf0d61ef7f52a3d16953 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7749caeb772648ea8aedd9cf3456e73f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b4183fb7d66c6e8c836e5685d18e102b |
| publicationDate | 2021-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112737585-A |
| titleOfInvention | Control circuit and method for multi-capacitor mismatch error calculation |
| abstract | The invention relates to a control circuit for calculating multi-capacitor mismatch errors, which comprises an operational amplifier, a capacitor array and a switch array, wherein the capacitor array is connected to the positive input end and the negative input end of the operational amplifier, and the switch array comprises a switch for controlling the capacitor array; the capacitor array comprises a capacitor C 0 ～C n‑1 Wherein each capacitor is controlled by an independent switch control signal phi 0 To phi n‑1 Control, according to different switches, connected to the input signal V in 、V cm Or a reference voltage V p And V n Quantized amplitude V of ADC r ＝V p ‑V n N is 2 relative to the current MDAC quantization bit number N N‑1 And N and N are positive integers. The invention also discloses a method for calculating the multi-capacitor mismatch error. The error of a plurality of capacitors can be calculated one by one in a digital domain according to a corresponding calibration algorithm under the condition of only using one fixed calibration voltage, so that the requirement of real-time digital compensation in the normal working process is met. |
| priorityDate | 2020-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419568092 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID7050 |
Total number of triples: 16.