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| Content Provider | IEEE Xplore Digital Library | 
|---|---|
| Author | Guo Shubao Zheng Xiaoyan Qiu Yulin | 
| Copyright Year | 2005 | 
| Description | Author affiliation: Inst. of Microelectron., Chinese Acad. of Sci., Beijing (Guo Shubao; Zheng Xiaoyan; Qiu Yulin) | 
| Abstract | An automatic calibration technique is developed to trim the differential OPAMP's input-referred and its former output stage offset voltages. The offset voltage is reduced by digitally adjusting the resulting offset current at the input and its first output stage. Without using complex circuits, the technique just need a comparator, a simple control logical and a current DAC (I-DAC). The proposed circuits have been designed in a 0.25 mum digital CMOS process. The OPAMP can calibrate a maximum offset of plusmn6 mV. The measured input referred offset voltage is less than 100 muV | 
| Starting Page | 656 | 
| Ending Page | 660 | 
| File Size | 933371 | 
| Page Count | 5 | 
| File Format | |
| ISBN | 0780392108 | 
| DOI | 10.1109/ICASIC.2005.1611334 | 
| Language | English | 
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) | 
| Publisher Date | 2005-10-24 | 
| Publisher Place | China | 
| Access Restriction | Subscribed | 
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) | 
| Subject Keyword | Calibration Voltage Counting circuits Microelectronics Automatic control CMOS process Signal generators Analog-digital conversion Capacitors Switches | 
| Content Type | Text | 
| Resource Type | Article | 
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