Sine-wave oscillators such as the Wien-bridge, state-variable, or quadrature oscillators, have an inherently undefined amplitude.
We have frequent input from our customers who are developing supercapacitor modules consisting of two or more cells stacked in series and who want to know how to utilize MOSFETs to balance leakage current. Several engineers had a misconception and dismissed low current MOSFETs because the charge and discharge current of the supercapacitor exceeded that of the MOSFET.
Glitch-impulse behavior of the R-2R and string DACs
Just like the quotation in the movie “Apollo 13”
and in real life, we design things not to fail.
With Android continuing to make inroads across the board (64% market share in tablets and 53% in smartphones as of Q1 2015), it's time to take a look at some cool Android apps for analog EEs.