Design of a third-order delta-sigma TDC with error-feedback structure
نویسندگان
چکیده
منابع مشابه
A Third-Order Low-Distortion Delta-Sigma Modulator with Opamp Sharing and Relaxed Feedback Path Timing
This paper proposes a third-order low-distortion deltasigma modulator (DSM). The third-order noise shaping is achieved by a single opamp (excluding the quantizer). In the proposed DSM structure, the timing limitation on the quantizer and dynamic element matching (DEM) logic in a conventional low-distortion structure can be relaxed from a nonoverlapping interval to half of the clock period. A cy...
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A sigma-delta modulator converts a sequence of real numbers bounded by 1 into a digital sequence with entries +1 and 1 only. When the input sequence consists of samples of a bandlimited function, oversampled by a factor with respect to its Nyquist frequency, we prove that filtering the digital output with an appropriate kernel reproduces the original bandlimited function up to an error of at mo...
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A third-order low-distortion delta-sigma modulator (DSM), whose third-order noise-shaping ability is achieved by just a single opamp, is proposed. Since only one amplifier is required in the whole circuit, the designed DSM is very power efficient. To realize the adder in front of quantizer without employing the huge-power opamp, a capacitive passive adder, which is the digital-to-analog convert...
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DESIGN OF SECOND-ORDER SIGMA-DELTA MODULATOR USING CMOS TECHNOLOGY
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ژورنال
عنوان ژورنال: IEICE Electronics Express
سال: 2019
ISSN: 1349-2543
DOI: 10.1587/elex.16.20181064