Chopper-stabilized operational transconductance amplifier
US4912423A · kind A · utility
31Cited by
6References
43Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1989 |
| Grant date | Mar 27, 1990 |
| Priority date | — |
| Expiry date | Feb 27, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45658
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Current mirror amplifiers are disclosed, each having first and second ports that can be interchanged as to which is input port and which is output port in response to an electric control signal. A chopper-stabilized differential amplifier that uses such a switchable current mirror amplifier as a balanced-to-single-ended signal converter for output signals is disclosed, which chopper-stabilized differential amplifier is particularly suited for the integrating amplifier in a delta-sigma analog-to-digital converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.