FET TTL interface circuit

摘要

The circuit has a FET input stage and two bipolar transistors in push-pull circuit, one of which transistors has a device for preventing a state of too much saturation. In the FET TTL interface circuit according to the invention, this device for preventing a state of too much saturation is formed by a clamp FET which is connected to the collector of the relevant bipolar transistor and is effectively connected at the gate to the input of the interface circuit.