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Given its flexible nature and popularity, it's no surprise that programmable logic figures prominently in a growing number of Design Ideas, including two in this new batch. In addition, EDN readers show us how to build a cheap and easy inductance tester, add a manual reset to a standard three-pin-reset supervisor, and obtain hex-code values for a microcontroller's ADC voltages.Jeremy Willden of ad hoc Electronics, Pleasant Grove,... (more) Details... more...

In the latest batch of Design Ideas, Antonio Eguizabal of Freescale Semiconductor sent in Oscilloscope helps obtain Bode plots in non-50-ohm environments. As an alternative to building or purchasing custom buffer amplifiers, you can use the near-ideal amplifiers in an analog oscilloscope that provides a vertical amplifier output on its rear panels—fo... (more) Details... more...

This issue’s Design Ideas perform a host of novel operations on input waveforms in the analog domain. In "Comparator detects position of peaks and valleys in a waveform," frequent contributor Marián Štofka of the Slovak University of Technology in Bratislava, Slovakia, makes use of the ADCMP6... (more) Details... more...