Oscilloscope aid - display data point connector

7-56 - elektor july/august 1982 0 R1 100k Clock 0 Al * see text ES1 3 If analogue signals are converted into digital and then displayed on an oscilloscope it will be obvious that the legibility will be less than perfect. This is due to the fact that the display consists of a (sometimes) large collection of short horizontal lines which can appear to have little or no relation to each other. Inter- connecting these "dashes" will make the displayed information far easier to read and this circuit was specifically designed for this purpose. It produces a fairly complex "waveform" on the screen but nevertheless, the legibility is considerably improved. In keeping with most good ideas, the operation of the circuit is very straightforward. An initial require- ment is a clock signal that becomes a logic "1" whenever the displayed data jumps to a new value. This can be derived from the circuit under test with the aid of a monostable. Opamp A3 is designed as an integrator which serves as a...