Vo= (Va -Vb). Hence the circuit is called as subtractor. 10. How many additional sources are connected to each input terminal to obtain an eight input summing amplifier?
A. Six
B. Three
C. Four
D. Eight
Answer:A
Vo= (Va -Vb). Hence the circuit is called as subtractor. 10. How many additional sources are connected to each input terminal to obtain an eight input summing amplifier?
A. Six B. Three C. Four D. Eight
Explanation: An eight input summing amplifier can be constructed using basic differential amplifier, if six additional input sources are used by connecting three input sources to inverting and non-inverting input terminal through resistors. 11. Calculate the output voltage for the summing amplifier given below, where R=2kΩ and RL =10kΩ.