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PubMed · 8087054

A high output impedance current source.

C W Denyer·F J Lidgey·Q S Zhu·C N McLeod
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Abstract

A high output impedance current source was required for electrical impedance tomography (EIT) applications capable of operating up to 200 kHz. The architecture is based on operational-amplifier power-supply current sensing and produces a predominantly capacitive output impedance, which for the design presented is approximately 1.2 pF.

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Amplifiers, ElectronicElectric ImpedanceElectronicsTomographyJournal ArticleResearch Support, Non-U.S. Gov't

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C W Denyer, F J Lidgey, Q S Zhu, C N McLeod. 1994. A high output impedance current source.. https://doi.org/10.1088/0967-3334%2F15%2F2a%2F011

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