| 摘要 |
<p>A circuit for capacitive touch applications comprising: a charge integrator; a low pass-filter; a correlated double sampler comprising an input capacitor; a sampler and holder; an analog to digital converter. Said low pass-filter having a cut-off frequency lower than the Nyquist frequency of the sampler and holder. Said low pass filter comprising said input capacitor and a serial resistor.</p> |
