Invention Grant
- Patent Title: High-resolution sigma-delta converter
- Patent Title (中): 高分辨率Σ-Δ转换器
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Application No.: US11168009Application Date: 2005-06-28
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Publication No.: US07158063B2Publication Date: 2007-01-02
- Inventor: Mario Motz , Lukas Doerrer
- Applicant: Mario Motz , Lukas Doerrer
- Applicant Address: DE Munich
- Assignee: Infineon Technologies AG
- Current Assignee: Infineon Technologies AG
- Current Assignee Address: DE Munich
- Agency: Dicke, Billig & Czaja, PLLC
- Priority: DE102004031153 20040628
- Main IPC: H03M3/00
- IPC: H03M3/00

Abstract:
A sigma-delta converter is disclosed. In one embodiment, the sigma-delta converter includes two series-connected converter stages which are each supplied with a feedback signal, a comparator stage which is connected downstream of the second converter stage, which is supplied with the output signal from the second converter stage and which provides an at least two-value comparator signal, and at least one output stage which has at least one digital integrator and which produces a multibit signal as output signal. The sigma-delta converter also has a first feedback look, which is supplied with the output signal and which has a multibit digital-analog converter which is supplied with the output signal and which converts this output signal into a first feedback signal with an amplitude that is dependent on the output signal, and a second feedback loop, which is supplied with the comparator signal, having a digital-analog converter which converts a signal that is dependent on the comparator signal into the second feedback signal.
Public/Granted literature
- US20060022855A1 High-resolution sigma-delta converter Public/Granted day:2006-02-02
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