heya people its me again.... i got this project that requires me to design a ADC and then with then take the output of that ADC and feed it into a DAC and then i must see if there is any difference from my originally input voltage and my final voltage...
Aim for my project is: Design and build a complete data acquisition (DAQ) system using only discrete op-amps e.g. LM741. The system should include op-amp circuits for an analog-to-digital converter (ADC) and a digital-to-analog converter (DAC). The system will measure the accuracy of conversion where original input analog voltage is compared with the final output of the DAC. The closer these values are, the better the conversion process is. (NB! You will need to use a priority encoder
Specifications is:
(1) The DAC should accept an input sequence of four-digit binary numbers. A high level is a binary 1 and should be represented by +5V. A low level is a binary 0 and represented by 0V. The four-digit input value must be represented by four LEDs.
(2) The output of your DAC should represent the analogue value of the digital input e.g. the binary sequence 1111 should give you an output of +15V. Note the output of the DAC should be positive. How would you achieve this?
What i have got so far.....:
Ive decided that my input voltage is gona be 8volts.
I am gona use 15 OP-amps (4bit = 15 stages starting at 0000 as stage 1) and feed the ouputs to a Priority encoder to convert it to a Digital Signal
My Vref is going to be 16volts.
So have i started this project correctly??
Aim for my project is: Design and build a complete data acquisition (DAQ) system using only discrete op-amps e.g. LM741. The system should include op-amp circuits for an analog-to-digital converter (ADC) and a digital-to-analog converter (DAC). The system will measure the accuracy of conversion where original input analog voltage is compared with the final output of the DAC. The closer these values are, the better the conversion process is. (NB! You will need to use a priority encoder
Specifications is:
(1) The DAC should accept an input sequence of four-digit binary numbers. A high level is a binary 1 and should be represented by +5V. A low level is a binary 0 and represented by 0V. The four-digit input value must be represented by four LEDs.
(2) The output of your DAC should represent the analogue value of the digital input e.g. the binary sequence 1111 should give you an output of +15V. Note the output of the DAC should be positive. How would you achieve this?
What i have got so far.....:
Ive decided that my input voltage is gona be 8volts.
I am gona use 15 OP-amps (4bit = 15 stages starting at 0000 as stage 1) and feed the ouputs to a Priority encoder to convert it to a Digital Signal
My Vref is going to be 16volts.
So have i started this project correctly??