Design & Build

Various electronics design and build

EEVblog #1328 – uCurrent OPA189 Measurements

Part 3 of designing a better uCurrent series. Measuring the noise and consumption of the OPA189 compared to the MAX4239 using a dynamic signal analyser and an oscilloscope. Forum: https://www.eevblog.com/forum/blog/eevblog-1328-ucurrent-op189-measurements/ Podcast: Download

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EEVblog #1327 – 3 Ways to FAIL at PCB Manufacture

Three ways to get your PCB design rejected by your PCB manufacturer. 1) Imperial/Metric conversion 2) Unexpected Trace/Space specifications 3) Goofing the Gerber resolution. Forum: https://www.eevblog.com/forum/blog/eevblog-1327-3-ways-to-fail-at-pcb-manufacture/ Podcast: Download

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EEVblog #1326 – How Engineering Minds Think Alike

Two almost identical complex designs published at almost the same time? How does that happen? Let’s go back to 1996 and see how similar Dave’s PC Logic Analyser design is to one published in Elektor Electronics magazine. Forum: https://www.eevblog.com/forum/blog/eevblog-1326-how-engineering-minds-think-alike/ Podcast: Download

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EEVblog #1325 – OPAMP Shootout – Datasheet Deep Dive

Part 2 in designing a better uCurrent. A datasheet shootout between the Maxim MAX4239 and the TI OPA189 A deeper dive into the datasheet specs from the previous video, looking at gain bandwidth product, noise, supply current and voltages, offset voltages histograms, input bias currents, recovery and settling time, and ...

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