4 Bit AD converter 2

125

02:41:35

4 Bit converter, analog input via Potentiometer, LED display

published 11 years ago

roops1967

11 years ago

Like it

ucefkh

11 years ago

Nice more explanations would be helpful

loloh

11 years ago

The NE555 is working as a clock generator. The output signal is send to the up counter input of e 4 bit binary counter. The binary exits of this first counter drive ab binary encoded voltage divider with 1, 2, 4 and 8 kOhm. It causes a stair shaped voltage in time domain. The OP amp is used as a compairator. If the stair voltage exeedes the voltage of the non inverting input of the compairator the inverted output signal triggers the load input from the second counter. This counter is working as a latch and holds the actual number of counts for the display encoder.

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