Question

Which of the following amplifier is
used in a digital to analog converter?
a)non inverter
b)difference amplifier
c)summer
d)voltage follower​

Answer 1

$\large \sf{Answer}$

Since digital to analog conversion is simply a weighted sum of the binary input, a circuit called a summing amplifier is used. This is basically an op-amp amplifier with multiple resistors connected to one input. The junction where the resistors meet is called the summing junction or the virtual ground.

Answer 2

Answer:

c) Summing Amplifier

Explanation:

It is a type of op-amp amplifier (operational amplifier). It combines many voyages (present on two or more inputs)  into a single output voltage. If we add many more input resistors (whose resistances are equal to the original input resistor) to the input, then we will get an operational amplifier called a Summing Amplifier (Summing Inverter/Voltage Adder). It is a very flexible circuit that enables us to “Sum” or “Add” several individual input signals together. Its name is also based on the ability to “Add” or “Sum” many inputs in a single. It is used as a digital to analog converter because it simply needs to weigh the sum of the binary input. Multiple resistors are connected to one input.

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