UNIT 4 ADC

An open-collector output requires---------------------

• an output resistor

• a pull-up resistor

• no output resistor

• a pull-down resistor

pull up resistor always connected to

• Vcc

• ground

• input

• output

Totem-pole output,also known as a________

• push-pull output

• totem -dipole output

• pull-pull output

• push-push output

Open collector output needs _______

• pull up resistor

• pull down resistor

• Both A and B

• none of the above

Resistor which holds the logic signal near zero volts when no other active device is connected is called

• zener resistor

• variable resistor

• pull-up resistor

• PULL-down resistor

Active pull up has element called

• transistor

• resistor

• insulator

• conductor

A TTL totem -pole circuits is designed so that the output transistor

• Provide phase splitting

• Are always on together

• Are never on together

• Provide voltage regulation

Schottky diode operate only with

• minorty carriers

• majority carriers

• capacitors

• inductor

schottky diode has junction made up of

• metal to n region

• p to n region

• metal to semiconductor

• metal to insulator

Schottky diodes are also known as

• minority carrier diode

•  hot carrier diode

• majority carrier diode

• electrode carrier diode