D to A converter using Ladder Network Experiment Procedure, Observations & Calculations, Result, Viva 2023

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 Using Ladder network

Aim :

Convert four bits Digital signal to an analog equivalent signal using R-2R ladder network.

Op-Amp D to A converter using Ladder network - Experiment

 

Apparatus :

Multimeter, Dual power supply (15V), Op-Amp 741, resistors, Bread board, connecting wires.

Apparatus

 

Formula :

Formula

 

Circuit Diagram :

Op-Amp D to A converter using Ladder network - Experiment

 

Procedure :

  1. Calculate the feedback resistance from the given formula for the maximum output voltage (10V).
  2. Connect the circuit as shown in the circuit diagram.
  3. Apply the input bit combination as per observation table and note down the output voltage. 
  4. Repeat step-2 fall all entries mentioned in observation table. 
  5. At the end, compare the observed output voltage with theoretically calculated output voltage.
  6. Plot a graph of output voltage against decimal number.

Obs/Cal/Graph/Result :

Viva Question and Answers [FAQ] :

1. What is Ladder network?

Ans : A network consisting of circuit elements connected in series and in parallel.

2. Which power supply use in Ladder network Experiment?

Ans : DC power supply.

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