Digital Circuits
Number System and Code Convertions
Marks 1Marks 2
Sequential Circuits
Marks 1Marks 2Marks 5Marks 8
Semiconductor Memories
Marks 1Marks 2
Logic Families
Marks 1Marks 2Marks 8
Analog to Digital and Digital to Analog Converters
Marks 1Marks 2
1
GATE ECE 1997
MCQ (Single Correct Answer)
+1
-0.3
The gate delay of an NMOS inverter is dominated by charge time rather than discharge time because
A
the driver transistor has a larger threshold voltage than the load transistor.
B
the driver transistor has larger leakage currents compared to the load transistor.
C
the load transistor has a smaller W/L ratio compared to the driver transistor
D
none of the above
2
GATE ECE 1997
MCQ (Single Correct Answer)
+1
-0.3
The inverter 74AL SO4 has the following specifications:
$${I_{OH}}{\,_{\max \,}} = \, - $$ 0.4mA, $${I_{OL}}$$ max = 8mA, $${I_{IH}}$$ max = $$\mu $$A , $${I_{IL\,}}_{\max \,}$$=0.1mA. The fan out based on the above will be
A
10
B
20
C
60
D
100
3
GATE ECE 1997
MCQ (Single Correct Answer)
+1
-0.3
In standard TTL the 'totem pole' stage refers to
A
the multi-emitteer input stage
B
the phase splitter
C
the output buffer
D
open collector output stage
4
GATE ECE 1992
MCQ (Single Correct Answer)
+1
-0.3
The figure shows the circuit of a gate in the Resistor Transistor Logic (RTL) family. The circuit represents a GATE ECE 1992 Digital Circuits - Logic Families Question 23 English
A
NAND
B
AND
C
NOR
D
OR
GATE ECE Subjects
Signals and Systems
Network Theory
Control Systems
Digital Circuits
General Aptitude
Electronic Devices and VLSI
Analog Circuits
Engineering Mathematics
Microprocessors
Communications
Electromagnetics