Multi-channel pressure XMD diagram

Published:2012/12/7 1:19:00 Author:Ecco | Keyword: Multi-channel, pressure XMD | From:SeekIC

It uses multi-chip MAX1457 to match with single-chip A / D converter and SCM, then they constitute a multi-channel pressure XMD, and the circuit diagram is shown in Fig. In the figure, it uses 8-to-1 analog switch CD4051 to receive up to 8-channel sensor signals. Each sensor calibration coefficients are stored in the 93C66. CD4051 output connects to ICL7135 - 4 1/ 2 single-chip A / D converter, then it can 41 / 2 digit LED display by decoder driver(CD4511) and bit driver (MC1413).



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