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This paper presents an integrated fully differential current driver for wearable multi-frequency electrical impedance tomography (EIT). The integrated circuit (IC) comprises a wideband current driver (up to 500 kHz) functioning as the master for current sourcing, and a differential voltage receiver with common-mode feedback configuration as the slave for current sinking. The IC is fabricated in a...
This paper presents a current-mode neural/muscular stimulator with an exponentially decaying stimulation current. The use of exponentially decaying current makes the voltage on the stimulating electrode constant during the stimulation, which eliminates the headroom and increases the power efficiency. A simple exponentially decaying current generator is proposed based on Taylor series approximation...
<?Pub Dtl?>A mobile electrical impedance tomography (EIT) IC is proposed for early breast cancer detection personally at home. To assemble the entire system into a simple brassiere shape, EIT IC is integrated via a multi-layered fabric circuit board which includes 90 EIT electrodes and two reference electrodes for current stimulation and voltage sensing. The IC supports three operating modes;...
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