Large time constant steering circuit and instrumentation amplifier implementing same
US7920005B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 30, 2009 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Jul 23, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45441
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a large time constant steering circuit for slowly changing a voltage on a node between at least two discrete voltage levels. The present invention further relates to a slow steering current DAC comprising said large time constant steering circuit. The present invention further relates to an instrumentation amplifier device comprising a current balancing instrumentation amplifier for amplifying an input signal to an amplified output signal and a DC servo-loop for removing a DC-component from the input signal. The present invention further relates to an EEG acquisition ASIC comprising said instrumentation amplifier device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.