A current-mode sample-and-hold circuit with high accuracy
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KünyeÖzkılıç, M. C., Minaei, S., & Türköz, S. (2007). A current-mode sample-and-hold circuit with high accuracy. In 2007 9th International Symposium on Signal Processing and Its Applications, ISSPA (pp. 1-4). Piscataway, NJ: IEEE. http://dx.doi.org/10.1109/ISSPA.2007.4555319
In this paper a new current-mode sample-and-hold circuit is designed to obtain high-precision current processing and reduced feedthrough error simultaneously. The proposed sample-and-hold circuit uses regulated cascode current mirrors to increase the gain accuracy. Also a replication circuit is used for cancellation of the feedthrough error. The performance of the circuit is verified through SPICE simulations.