Abstract:A simple resistance-to-time converter is presented for interfacing resistive bridge sensors. It consists of two voltage comparators, a ramp voltage generator, and two logic gates. A prototype circuit built using discrete components exhibit a conversion sensitivity amounting to 2832.4 µs/Ω over the resistance deviation range of 0-2 Ω and a linearity error less than 0.005%. Power dissipation of the converter is 15.57 mW.
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