الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Conclusion and Summary
An extensive study on Capacitance to Voltage (C/V) conversion techniques is presented. A
novel technique for actuation and detection is introduced [Elsayed 13]. In this technique,
the Dynamic range of both the detection and actuation is preserved to their maximum value allowing efficient low noise performance. A novel technique for canceling coupling from actuation signal to detection path is
introduced [Elmallah 12]. The novel technique offers a superior rejection of 80dB to the actuation signal.
A DT capacitance to voltage interface is implemented. The interface is fully digitally programmable, and able to multiplex up-to 9 channels. Channels multiplexing is done
by trading extra channels for reduced sampling rate with a fixed output rate of 600kHz and 32 slot fully digitally programmable time frame. Each channel has its own digitally
programmable; gain, offset trimming, rest capacitance cancellation, chopping enable, rate select.
The interface uses CDS technique to cancel reset switch noise and CHS technique to cancel
low frequency noise from the OTAs.
The interface achieves a 12 bits linearity and a superior noise floor of 21zF/ p Hz at 600kHz
sampling rate while consuming 3.3mA from 1.3V supply. The interface can sense signal
modulated on upto 300kHz carrier while allowing optimum chopping frequency.