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US 2010/0060500 A1Published application
Analog/Digital Converter Assembly and Corresponding Method
Assigneeaustriamicrosystems AG
InventorsGregor Schatzberger, Gilbert Promitzer
Life of this patent
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Abstract
An analogue/digital converter arrangement and a method. A differential input voltage is converted by means of a differentially implemented capacitative voltage divider that comprises two programmable capacitor banks (3, 4), and with the aid of the comparator (6) into a digital output signal.
Claims23
An analogue/digital converter arrangement comprising:
- a differential input through which an analogue signal is supplied;
- a differentially structured, capacitative voltage divider whose connection to the differential input can be switched on and off and that comprises at least two programmable capacitor banks;
- a comparator with inputs that are connected to the differentially implemented, capacitative voltage divider;
- and
- an output of the converter arrangement that is coupled to the output of the comparator and where the digital signal derived from the analogue signal is provided.
2 more elements
A method of analogue/digital conversion of a differential analogue signal into a digital signal, comprising the steps of:
- attenuating the differential analogue signal using a differentially structured, capacitative voltage divider that comprises at least two programmable capacitor banks through their programming;
- supplying a differential signal derived from the voltage divider to a comparator;
- and
- generating the digital signal depending on an output signal from the comparator.
1 more element
Dependencies are inferred from the claim text.