Consider a four bit D to A converter GATE EC 2015

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Consider a four bit D to A converter. -GATE EC 2015

The analog value corresponding to digital signals of values 0000 and 0001 are 0V and 0.0625V respectively. The analog value (in Volts) corresponding to the digital signal 1111 is ___________________.

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The analog value (in Volts) corresponding to the digital signal 1111 is 0.9375

Analog output = [Resolution] × [Decimal equivalent of Binary]
Analog output = 0.0625 15
= 0.9375

A D/A Converter is used when the binary output from a digital system is to be converted into its equivalent analog voltage or current.
The binary output will be a sequence of 1’s and 0’s. Thus they ma be difficult to follow. But, a D/A converter help the user to interpret easily.
Basically, a D/A converter have an op-amp. It can be classified into 2 types. They are
1. Digital to Analog Converter using Binary-Weighted Resistors
2. Digital to Analog Converter with R and 2R Resistors

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