On-chip Impedance Evaluation with Auto-calibration based on Auto-balancing Bridge

Takaaki Shirakawa
Takaaki Shirakawa
Ryosuke Sakai
Ryosuke Sakai

international midwest symposium on circuits and systems, pp. 262-265, 2018.

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Abstract:

We propose a circuit mechanism with an autocalibration in the impedance measurement circuit based on the auto-balancing bridge method. In the auto-balancing bridge method, an inverting amplifier circuit using an operational amplifier is used. Since the measurement accuracy depends on the feedback resistance of the inverting amplifier circ...More

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