Part 3 of designing a better uCurrent series.<br />Measuring the noise and consumption of the OPA189 compared to the MAX4239 using a dynamic signal analyser and an oscilloscope.<br /><br />How to measure opamp noise: <a href="https://www.youtube.com/watch?v=Y0jkPLuFdnM" target="_blank" rel="nofollow">https://www.youtube.com/watch?v=Y0jkPLuFdnM</a><br /><br />Forum: <a href="https://www.eevblog.com/forum/blog/eevblog-1328-ucurrent-op189-measurements/" target="_blank" rel="nofollow">https://www.eevblog.com/forum/blog/eevblog-1328-ucurrent-op189-measurements/</a><br /><br />Subscribe on Library: <a href="https://lbry.tv/@eevblog" target="_blank" rel="nofollow">https://lbry.tv/@eevblog</a>:7<br />EEVblog Web Site: <a href="http://www.eevblog.com" target="_blank" rel="nofollow">http://www.eevblog.com</a><br />The 2nd EEVblog Channel: <a href="http://www.youtube.com/EEVblog2" target="_blank" rel="nofollow">http://www.youtube.com/EEVblog2</a><br />EEVdiscover: <a href="https://www.youtube.com/eevdiscover" target="_blank" rel="nofollow">https://www.youtube.com/eevdiscover</a><br />Support the EEVblog through Patreon! <a href="http://www.patreon.com/eevblog" target="_blank" rel="nofollow">http://www.patreon.com/eevblog</a><br /><br />AliExpress Affiliate: <a href="http://s.click.aliexpress.com/e/c2LRpe8g" target="_blank" rel="nofollow">http://s.click.aliexpress.com/e/c2LRpe8g</a><br />Buy anything through that link and Dave gets a commission at no cost to you.<br /><br />Donate With Bitcoin & Other Crypto Currencies!<br /><a href="https://www.eevblog.com/crypto-currency/" target="_blank" rel="nofollow">https://www.eevblog.com/crypto-currency/</a><br /><br />T-Shirts: <a href="http://teespring.com/stores/eevblog" target="_blank" rel="nofollow">http://teespring.com/stores/eevblog</a><br /><br />#uCurrent #Design #Measurement<br />...<br /><a href="https://www.youtube.com/watch?v=UVjLoJMVL0s" target="_blank" rel="nofollow">https://www.youtube.com/watch?v=UVjLoJMVL0s</a>