We found this circuit in a 1980s documentation. Equivalent components can be used. The circuit senses temperatures in the range of 0 to 50º C and uses a transistor as sensor.
Operational amplifiers used in this 80's circuit is not very common today, but the setting can be...
July 2017 - Texas Instruments' new 8-channel digital switches for I2C applications can be found at...
This circuit was found in an American 1980s documentation. The transistorized step is the...