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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Wakaumi, H. |
| Copyright Year | 2012 |
| Description | Author affiliation: Division of Electronics and Information Engineering, Tokyo Metropolitan College of Industrial Technology, Tokyo, 140-0011, Japan (Wakaumi, H.) |
| Abstract | This paper presents a high-speed CMOS OP Amp with a dynamic switching bias circuit capable of processing video signals of over 2 MHz with slight nonlinearity and low dissipated power. The OP Amp, capable of operating at 10 MHz dynamic switching rate, was designed and showed through simulations a dissipated power of 60 % of that in conventional continuous operation. A switched capacitor (SC) non-inverting amplifier with a gain of 2 employing this OP Amp and its high-speed 10 MHz dynamic switching operation, capable of processing video signals, was demonstrated. By increasing the switching duty ratio to 70 %, its power dissipation decreased to 62 % of that in normal operation. The output voltage inaccuracy for a SC amplifier with a gain of below 2 was below 1 % and mainly caused by the static nonlinearity of the OP Amp. This circuit configuration should be very useful in realizing low-power wide-band signal processing ICs. |
| Starting Page | 273 |
| Ending Page | 276 |
| File Size | 952810 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781467322478 |
| e-ISBN | 9788993215045 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2012-10-17 |
| Publisher Place | Korea (South) |
| Access Restriction | Subscribed |
| Rights Holder | ICROS |
| Subject Keyword | Operational amplifiers CMOS Capacitors switched capacitor filter Switches Active filters CMOS integrated circuits Power dissipation operational amplifier Video signal processing Switching circuits |
| Content Type | Text |
| Resource Type | Article |
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