Lab 02 - EE 421L 

Authored by Ethan Tash,

tash@unlv.nevada.edu 

09/06/2017 

  

Prelab:
 
For the purpose of the pre lab I initially backed up all work related to the lab and downloaded the zip file containing the lab 2 Ideal 10-bit ADC to DAC
circuit to my CMOSedu library. I unzipped the file and ran the initial transient response simulation. I experimented with the circuit by initially removing the wires
connecting pin B[9:0]
 
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Fig 0: Image of backed up zip files located in my google drive
 

 
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Fig 01: Schemactic of  the Ideal 10-bit ADC to DAC
 
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Fig 02: Simulated output for the Transient Response of the 10-bit Ideal ADC to DAC circuit

 

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Fig 05: adjusted input voltage                                     Fig 04: Observed clamping of circuit if Input voltage equals or exceeds 5V

 

Post Lab:

 

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Fig 06: Voltage Divider with 2R being represented by two 10k resistors in series which will be the N-well resistors implementing the 10 bit DAC

 

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Fig 07: My custom symbol for the Voltage Divider

 

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Fig 08: N-well layer resistor symbol

 

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Fig 09: N-well layer resistor with the layer distinguishing it as a resistor and the pins set on the metal1 layer 

 

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 Fig 10: N-well layer resistor extracted file which gives parameter values

 
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Fig 10: The 10-Bit wired up DAC
 
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Fig 11: The 10-Bit wired up DAC symbol created 
 

  

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