ELECTRONICS - ADC, Summing Amplifier & Voltage Help

Discussion in 'Homework Help' started by sarah90, Aug 23, 2011.

  1. sarah90

    sarah90 New Member

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    I do have a few questions which I desperately need answers as I find this subject too hard.

    1) Draw a fully labelled block diagram of a 3-bit ‘Flash Encoding’ analogue to digital converter (ADC) and explain how the device converts an analogue voltage into a 3-bit binary number.

    2) Using a suitable diagram explain how a summing amplifier works. Give an expression for its output voltage and describe how the device can be used as a DAC in order to convert binary signals into analogue voltages.

    3) Draw the general model of electronic feedback and derive an expression for the voltage gain of the system.

    I would be very grateful if you could spare some of your own time helping me! Thank you in advance! x
  2. john blue

    john blue Member

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  3. sarah90

    sarah90 New Member

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    Thank you so much for this, helped me alot!