Analog Building Blocks for Organic Smart Sensor Systems in Organic Thin-Film Transistor Technology on Flexible Plastic Foil.
J. Solid-State Circuits（2012）
摘要
In this work, we present the implementation and measurement results of all analog building blocks of an organic smart sensor system on foil. The presented building blocks are a 1D and a 2D 4 4 pixel flexible capacitive touch sensor with a sample rate of 1.5 kS/s, a DC-connected two-stage opamp with a 20 dB DC gain, a Dickson DC-DC up-converter with output bias voltages up to 60 V and down to -40 V which are used as a bias voltage in the other building blocks, and a Delta Sigma ADC with a 26.5 dB precision and a band width of 15.6 Hz. The sensors, the opamp, the DC-DC converter and the ADC respectively consume 6 mu A, 15 mu A, 1 mu A and 100 mu A from a 15 V power supply.
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关键词
DC-DC power convertors,analogue-digital conversion,capacitive sensors,delta-sigma modulation,flexible electronics,intelligent sensors,operational amplifiers,organic semiconductors,plastics,tactile sensors,thin film transistors,ΔΣ ADC,1D flexible capacitive touch sensor,2D flexible capacitive touch sensor,DC-connected two-stage opamp,Dickson DC-DC up-converter,analog building block,bandwidth 15.6 Hz,current 1 muA,current 100 muA,current 15 muA,current 6 muA,flexible plastic foil,gain 20 dB,gain 26.5 dB,organic smart sensor system,organic thin-film transistor technology,output bias voltages,voltage 15 V,Capacitive,DC-DC,delta-sigma,opamp,organic,pentacene,sensor,smart sensor,thin film
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