Smart Sensor Interface with A/D Conversion and Programmable Calibration
IEEE Journal of Solid-State Circuits, ISSN: 1558-173X, Vol: 29, Issue: 8, Page: 963-966
1994
- 49Citations
- 8Captures
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Article Description
In this paper we present a new architecture for a smart sensor interface. It is based on an oversampled A/D converter associated with a small ROM containing calibration coefficients. The nonlinear function desired is obtained by piecewise linear interpolation between the values stored in the ROM, without any additional circuits. This solution has the advantage of high programming flexibility, long-term stability, and low area consumption. Moreover, it is suitable for co-integration with sensors because of its minimum analog content. A prototype was integrated in a CMOS 1.2-µm technology. Simulation and experimental results are reported together with a detailed theoretical analysis and some design guidelines. © 1994 IEEE. All right reserved.
Bibliographic Details
Institute of Electrical and Electronics Engineers (IEEE)
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