Parasitic discrete-time-pole cancelling techniques for ultra-wideband discrete-time charge-domain baseband filters

Yoshizawa, Atsushi; Iida, Sachio

doi:10.1109/asscc.2010.5716605

Cited by 4 publications

(1 citation statement)

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“…There have been many attempts to reduce passband flatness degradation. Current integrating band-pass analog infinite impulse response (IIR) filters having inverse sinc-like frequency response have been proposed [10]. Through a cascade connection with a bandpass analog IIR filter, the sinc shaped frequency response can be compensated for.…”

Section: Introductionmentioning

confidence: 99%

Low-Power Current Integrating Flat-Passband Infinite Impulse Response Filter for Sensor Read-Out Integrated Circuit in 65-nm CMOS Technology

Jo¹

2023

Electronics

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Low-power current integrating infinite impulse response filter having flat-passband for sensor read-out integrated circuit is proposed. In a current integrating filter, passband flatness degradation is inevitable due to sinc-like filtering characteristics. In this paper, by proposing a high order infinite impulse response filter architecture, flat-passband characteristic can be achieved. By implementing a filter architecture with a flat passband, the required sampling frequency can be lowered, which in turn can reduce power consumption. Moreover, the proposed high order infinite impulse response filter architecture has a high degree of freedom on adjusting input sample weights. The proposed integrated circuit is implemented in TSMC 65-nm CMOS process and operated on 1.2 V supply voltage.

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Section: Introductionmentioning

confidence: 99%