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An integrated current measurement system with ultra wide dynamic range is presented and fabricated in a 180-nm CMOS technology. Its dual-mode design provides concurrent voltage and frequency outputs, without requiring an external clock source. An integrator-differentiator core provides a voltage output with a noise floor of 11.6 fA/ [Formula: see text] and(More)
This paper presents a novel ultra-low-power dual-phase current-mode relaxation oscillator, which produces a 122 kHz digital clock and has total power consumption of 14.4 nW at 0.6 V. Its frequency dependence is 327 ppm/°C over a temperature range of -20° C to 100° C, and its supply voltage coefficient is ±3.0%/V from 0.6 V to 1.8(More)
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