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AD8400 based RTD Simulator using array of AD8400 1K resistors in parallel and in series

Thread Summary

The user inquires about using multiple AD8400 digital potentiometers in an array to achieve high-resolution output for a PT100 RTD simulator over SPI. The final answer confirms that as long as the current and voltage are within the absolute maximum ratings, the setup should be feasible. The user also references an application note (AN-582) for additional support.
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Category: Hardware
Product Number: AD8400


I am trying to find solution for PT100 RTD simulator, using an array of Digpots-AD8400 arranged for a high-resolution output. This is a simple connection to digital pot over SPI.
Is it feasible to use the individual outputs of multiple AD8400 output resistances aa an array of resistances for high resolution?