We found this circuit in a 1986 documentation. It uses only LEDs, batteries, resistors and the power supply which can consist of 4 batteries or a 9V battery. The basic circuit uses two-color LEDs.
March 2017 - Texas Instruments is already making available through Mouser Electronics the LP5907 an...
In the figure we have the simple way to obtain an integrator with an operational amplifier of type...
We found this amplifier for automotive use in the Philips Databook of 1990. The circuit has a...