This paper focuses on the topic of ∑Δ modulators stability and saturation recovery for high-order Switched Capacitor (SC) structures. A technique, which allows a fast recover of the modulator from instability (<300ns) and guarantees a minimum of 20dB SNR also when the architecture gets unstable, is proposed. This technique is based on two steps: (1) instability detection with systenz recovery and (2) digital post-processing. This strategy has been applied to a 6th-order SC bandpass ∑Δ modulator operating at 42.8MHz with 74dB Dynamic Range (DR). The proposal is vuliduted by extended experimental results. © 2001 IEEE.

Cusinato, P., Pasolini, F., Stefani, F., Baschirotto, A. (2001). Saturation recovery technique for high-order bandpass switched capacitor ∑Δ modulators. In Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems (pp.1085-1088). IEEE [10.1109/ICECS.2001.957688].

Saturation recovery technique for high-order bandpass switched capacitor ∑Δ modulators

Baschirotto, A
2001

Abstract

This paper focuses on the topic of ∑Δ modulators stability and saturation recovery for high-order Switched Capacitor (SC) structures. A technique, which allows a fast recover of the modulator from instability (<300ns) and guarantees a minimum of 20dB SNR also when the architecture gets unstable, is proposed. This technique is based on two steps: (1) instability detection with systenz recovery and (2) digital post-processing. This strategy has been applied to a 6th-order SC bandpass ∑Δ modulator operating at 42.8MHz with 74dB Dynamic Range (DR). The proposal is vuliduted by extended experimental results. © 2001 IEEE.
paper
42.8 MHz; SNR; digital post-processing; dynamic range; high-order bandpass switched capacitor sigma-delta modulator; instability detection; saturation recovery; stability; circuit noise; circuit stability; sigma-delta modulation; switched capacitor networks
English
8th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2001 - 02-05 September 2001
2001
Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems
9780780370579
2001
2
1085
1088
957688
none
Cusinato, P., Pasolini, F., Stefani, F., Baschirotto, A. (2001). Saturation recovery technique for high-order bandpass switched capacitor ∑Δ modulators. In Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems (pp.1085-1088). IEEE [10.1109/ICECS.2001.957688].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/36953
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