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This paper presents a new high performance 1.2 V - 0.18 µm CMOS voltage-to-frequency converter (VFC) that can be used either in single or differential mode to digitize sensor read-out signals in wireless sensor network applications. The proposed VFC works properly over the entire input range with output frequencies ranging between 0.0 and 0.9 MHz, which allows the sensor node microcontroller optimally...
This paper presents a micropower 1.2-V 0.18-µm CMOS temperature-compensated voltage-to-frequency converter for portable applications. Results show that the proposed converter has a power consumption of 60 µW (15 nW in sleep mode) operating over a (0.0 – 1.0 V) input voltage range with two different selectable output ranges, 0 – 0.5 MHz and 0.5 – 1 MHz. It achieves a relative error below 3 %, a gain...
This brief presents a monolithic 1.8-V 0.18-μm CMOS temperature-compensated voltage-to-frequency converter for sensor read-out interfaces in wireless sensor network applications. Measurement results show that the proposed converter features are suitable for an output frequency span of 2 MHz with an input voltage range of 0.1-1.6 V. This converter presents a relative error below 4.8% and a linearity...
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