Charge Injection in Current Copier Cells

Macq, D.;Jespers, Paul
(1993) Electronics Letters — Vol. 29, n° 9, p. 780-781 (1993)

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  • Macq, D.
    Author
  • Jespers, PaulUCLouvain
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Abstract
The current copier cell [1] is a versatile building block increasingly used in many analogue CMOS circuits. However, charge injection, noise, Early effect and leakage current affect its accuracy. The Letter focuses on charge injection. A new model, derived from the work of Vittoz [2] and Sheu et al. [3], is presented to predict the actual partition of the injected charges. The results are compared with experimental measurements on a test circuit.
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Macq, D., & Jespers, P. (1993). Charge Injection in Current Copier Cells. Electronics Letters, 29(9), 780-781. https://doi.org/10.1049/el:19930522 (Original work published 1993)