Digital trimming of OP AMP offset voltage and quiescent current using non-volatile memory
US6424211B1 · kind B1 · utility
20Cited by
6References
26Claims
0Family size
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Key dates
| Filing date | Jun 26, 2000 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Jun 26, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/45771
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An operational amplifier is trimmed electrically using non-volatile fuses. The non-volatile fuses may be programmed electrically without destroying any passivation layers or other devices on the electronic component. In the case of an integrated circuit analog component, the trimming may be performed either at the wafer level or at the packaging level. The trimming may be performed specifically to adjust the quiescent current or offset voltage of the operational amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.