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This paper presents a new first-order temperature compensated CMOS current reference. To achieve a compact architecture able to operate under low voltage with low power consumption, it is based on a self-biasing beta multiplier current generator. Compensation against temperature is achieved by using instead of an ordinary resistor two triode transistors in parallel, acting as a negative and a positive...
This paper presents the design of two new low-voltage first-order temperature compensated CMOS current references. To achieve compact topologies able to operate under low voltage with low power consumption, they are based on the simplest approach of cross-coupled current mirrors, and compensation is obtained by introducing a temperature dependent current mirror ratio. Results for 0.18 μm CMOS implementations...
This paper presents three compact and simple CMOS voltage-to-current (V-I) converter schemes attaining rail-to-rail operation with a highly linear V-I relationship over a (−40, +140 °C) temperature range. Based on an OTA/common source amplifier configuration, the key idea to reach rail-to-rail operation is reducing the voltage across the linear resistor that performs the V-I conversion to keep the...
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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