A CMOS micropower heart rate indicator

Ruha, A.; Kostamovaara, J.; Säynäjäkangas, S.

doi:10.1109/asic.1989.123230

Cited by 6 publications

(2 citation statements)

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“…Some of the measured performance figures for the amplifiers are given in table 1 [8,9]. The amplifier performance, especially in terms of GBW, exceeds the minimum requirements defined earlier, as this was achieved without exceeding the current consumption specification of the complete chip (30/~A).…”

Section: Cells and Functional Blocks Usedmentioning

confidence: 96%

“…The thermal noise UnT is calculated as UnT = ~4kTRB (9) where k is Boltzmann's constant, T is absolute temperature, R is the resistance, and B is the frequency band. The thermal noise of the preamplifier is dolrfinated by that of the input resistor Rin, and the total thermal noise of Rin = 1 Mfl over 1-kHz frequency band is 4/zV.…”

Section: Ruha Kostamovaara Siiyniijhkangasmentioning

confidence: 99%

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A micropower analog-digital heart rate detector chip

Ruha

Kostamovaara

Sänynäjäkangas

1994

Analog Integr Circ Sig Process

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Abstract. A micropower detector chip integrated with CMOS technology has been developed for a hand-held heart rate monitoring instrument mainly used by professional athletes and others who exercise seriously to increase their endurance and overall performance. The chip uses linear bandpass filtering and threshold detection and is implemented with analog switched-capacitor (SC) and digital techniques. The bandpass filter transfer function is derived from the spectral contents of noisy ECG signals. The layout was designed in full custom style in order to minimize the silicon area. The chip achieves a detection rate of 90 % with a simulated ECG signal corrupted with Gaussian noise (signal-to-noise ratio = 5) in the heart rate range 60-200 1/min with a total current consumption of less than 30 pA from a 3-V supply. The detection rate is 96.9% for a noisy signal obtained from the MIT-BIH arrhythmia database.

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Section: Cells and Functional Blocks Usedmentioning

confidence: 96%

Section: Ruha Kostamovaara Siiyniijhkangasmentioning

confidence: 99%