This circuit can be implemented with other comparators in the same series. The circuit is from a component manual and the supply voltage between 3 and 12 V depends on the application.
Analog Devices AD7768 24-bit sigma-delta (Σ-Δ) ADCs include an Σ-Δ modulator and digital filter...
The RC network of this circuit determines the operating frequency. The emitter-coupled circuit was found...
The operational amplifier used in this circuit is no longer very common, but the configuration can be adapted...