Temperature correction of an on-chip voltage reference
US9377795B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2014 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | Nov 17, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/447
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In an example, a temperature-corrected voltage reference circuit for use in an integrated circuit (IC) includes a voltage reference circuit, a programmable gain amplifier, and a digital control circuit. The programmable gain amplifier includes a first input coupled to the voltage reference circuit, a second input coupled to receive a control signal, and an output coupled to provide a temperature-corrected voltage reference. The digital control circuit includes an input coupled to receive a temperature signal indicative of temperature of the IC and an output coupled to the second input of the programmable gain amplifier, the digital control circuit generating the control signal in response to the temperature signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.