Abstract: An MOSFET latching driver circuit is disclosed which employs a depletion mode FET load bistable latch whose first node drives a depletion mode FET device and whose second node drives an enhancement mode FET device which are interconnected in a push-pull driver circuit. The latching driver has a reduced size when laid out in an integrated circuit and operates at a high speed.

Abstract: An integrated monolithic switch is fabricated in an epitaxial layer united to a semiconductor substrate. The switch includes a Darlington amplifier, a power output switch, a bilateral device, typically a diffused diode, and an epitaxial resistor, the combination being connected between a set of high voltage lines. The epitaxial layer has an appropriate thickness and resistivity to accommodate all active and passive elements. For a first input signal, the switch is connected to one high voltage line. For a second input signal, the switch is connected to the other high voltage line. The switch is adapted to sink current. The diode structure, when forward biased by the sinking current, forms a parasitic path to direct the sinking current to the substrate even though the high voltage lines are up. The Darlington is connected to the switch output to lower output voltage during the sinking condition.A set of switches of the same conductivity type may be employed to drive a cross point in a gas panel display.