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Discussion Groups | LPC900 | LPC a/d conversion
Find help, specifications and source code for the LPC900. The LPC900 challenges Microchip and AVR based on the worlds most popular 8-bit architecture the 80C51. With a 2-clock core the LPC900 series is a high performance, very flexible and low cost 8-bit microcontroller family. Designers using or interested in these devices are encouraged to share their know-how and ask questions.
LPC a/d conversion - gispul - Mar 13 6:16:00 2006
Hello to everyone! I need help and/or suggestion to realize a smart load cell(classic wheatstone bridge) using an LPC917. The system needs 14 bits resolution with +-1LSB accuracy (or more), slow sample rate (2 or 4 sample/sec.). I gived a look to AN10187 "Low-cost A/D-Conversion with Philips LPC microcontrollers" application note and i think the best solution is the dual slope conversion type. The application advise to utilize an external OP amplifier to improve the accuracy and resolution but dont show how to connect it. Do somebody have any suggestion or schematics for this solution? Thank you in advance!
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