Ultra low power automatic tuning for gm-C filters
Resumen:
A simple technique for on-chip tuning of ultra low power Gm-C filters is analyzed in this paper. The technique locks the filter G m /C2 π frequency to an external reference clock. The proposed tuning method is tested with a low frequency first order high pass section. The tuning of this filter for different applications by changing the reference frequency is also explored. The circuit tunes the filter frequency in a range from 10 Hz to 200 Hz with a consumption of less than 800 nA.
| 2010 | |
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Circuit tuning High-pass filters low-power electronics Electrónica |
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| Inglés | |
| Universidad de la República | |
| COLIBRI | |
| https://hdl.handle.net/20.500.12008/38713 | |
| Acceso abierto | |
| Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0) |
| Sumario: | A simple technique for on-chip tuning of ultra low power Gm-C filters is analyzed in this paper. The technique locks the filter G m /C2 π frequency to an external reference clock. The proposed tuning method is tested with a low frequency first order high pass section. The tuning of this filter for different applications by changing the reference frequency is also explored. The circuit tunes the filter frequency in a range from 10 Hz to 200 Hz with a consumption of less than 800 nA. |
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