Hi All,=20 The company I work at needs EE help. We are developing a medical device, that can be briefly summarized as a very accurate ohmmeter. Resistance is around 1-5 MOhm, we cannot put too much voltage across (<800 mV, but preferably ~ 50 mV) and need precision better than 0.1%. The device under test is sensitive to the usual environmental noises. =20 We are looking for somebody to help troubleshoot and improve our current design, does not have to be full-time. Please email me off-list if interes= ted.=20 Thanks, Sergey Dryga --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .