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.
This circuit was found in a 1978 publication. Equivalent operational amplifiers can be used. The...
This instrumentation circuit was obtained in the National Semiconductor's Linear Applications...
This circuit produces a sinusoidal signal whose frequency can be calculated using the formula in...