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EE 230 Lab 12 Spring 2010 Data Converters Revised2

EE 230 Lab 12 Spring 2010 Data Converters Revised2 - EE 230...

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EE 230 Spring 2010 Experiment 11 Since this is last lab,you do not need to submit the lab report . Instead write your observations for the lab and submit along with the releavant figures. A few basic questions related to the lab are to be answered along with your lab report. Data Converters – Some more properties Equipment: Obtain ADC0804 and DAC0808 chips from your TA. These are 8-bit ADC and DAC respectively. The data sheets can be found at http://www.national.com/mpf/DA/DAC0808.html#Order --> DAC http://cache.national.com/ds/DC/ADC0804.pdf --> ADC A typical circuit for ADC and DAC is shown below. This circuit should be sufficient for the lab requirements for this experiment. Figure 1: Typical DAC0808 Application.
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Figure 2: Typical ADC application. Please note that ADC is WR’ and INTR’ are initially grounded and then opened for chip to start. Also a voltage divider can be used at the Vin+ to prevent excess input cureent ..
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Part 1 Time Quantization and Aliasing Using the ADC -DAC configuration a) Sample a sinusoidal signal with an amplitude of 5V pp at 5 times the Nyquist rate.
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