This circuit with two operating modes was found in the September 1989 issue of Radio Electronics magazine. Other operational amplifiers can be used. The power supply must be dual.
This low drift circuit for thermocouple was found in an old European documentation. However, it is...
This complete single cell protection system is suggested by Linear Technology in its 2005 manual....
This simple circuit of low power with an LM386 includes the highly sensitive audio preamplifier...