2014 · 15 citations · 2 references
EngineeringAgricultural EngineeringElectrical EngineeringAnalog ElectronicsMicroelectronicsSensorsAnalog Integrated CircuitsAnalog IntegrationCmos Circuit DesignElectrochemical SensorsSensor Data AcquisitionSensor InterfacingAnalog Circuit DesignAnalog-digital ConversionAnalog-to-digital ConversionAnalog-to-digital ConvertersI2c InterfacingSensor Interface CircuitsSensor Readout CircuitsSpi Interfacing
This paper presents a fully integrated application specific integrated circuit (ASIC) for the readout of multiple electrochemical sensor signals. It consists of an analog router that routes readout circuits to various sensors, a 10bit successive approximation register analog to digital converter (SAR ADC), two digital to analog converters (DAC), a multiplexer and I2C/SPI serial interfaces for connection to micro-controller (MCU). The ASIC is fabricated in a 0.35-μm CMOS technology, occupies an area of 1.5 × 3.0 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> , and consumes a current of 3.2 mA from a 3.3 V supply. All calibration and configurations are set using the I2C/SPI serial interface connections.
2
Adaptive Multi-Sensor Interface System-On-Chip
Jinwen Xi, Chao Yang, Andrew J. Mason et al. · 2006 · 21 citations
Engineering, Computer Engineering, Electrical Engineering +17