The two op amps, IC₁ and IC₂, provide virtual grounds for both current outputs of the DAC

Authors	Alexander Bell
Main Document	Article «Circuit improves on temperature measurement»
Description	Figure 2
File Format / Size	PDF / 11 Kb
Document Language	English

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Article «Circuit improves on temperature measurement»

Figure 1. The DAC modulates transistors Q₁ and Q₂ with its two current outputs; ΔV_BE is a linear function of absolute temperature
Figure 2. The two op amps, IC₁ and IC₂, provide virtual grounds for both current outputs of the DAC

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