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2010•Electronics LettersRequires access

Charge-pump based switched-capacitor integrator for ΔΣ modulators

Alireza Nilchi, David Andrew Johns

Open publisher page 11 citations

Abstract

A low power switched-capacitor (SC) integrator based on a capacitive charge-pump (CP) is proposed. The CP integrator circuit consumes approximately a quarter of the power of a conventional SC integrator while maintaining the same thermal noise performance. Power consumption of the CP integrator is analysed and compared with a conventional parasitic-insensitive integrator. Simulation results verifying the thermal noise and settling performance of the CP integrator are also provided.

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What this paper is about

A low power switched-capacitor (SC) integrator based on a capacitive charge-pump (CP) is proposed. The CP integrator circuit consumes approximately a quarter of the power of a conventional SC integrator while maintaining the same thermal noise performance. Power consumption of the CP integrator is analysed and compared with a conventional parasitic-insensitive integrator. Simulation results verifying the thermal noise and settling performance of the CP integrator are also provided.

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OpenAlex reports 11 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

A low power switched-capacitor (SC) integrator based on a capacitive charge-pump (CP) is proposed. The CP integrator circuit consumes approximately a quarter of the power of a conventional SC integrator while maintaining the same thermal noise performance. Power consumption of the CP integrator is analysed and compared with a conventional parasitic-insensitive integrator. Simulation results verifying the thermal noise and settling performance of the CP integrator are also provided.

Key concepts: Integrator, Passive integrator circuit, Op amp integrator, Settling time, Integrating ADC, Capacitor, Switched capacitor, Electronic engineering

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