DIY Custom Analog to Digital Converter using Successive Approximation скачать в хорошем качестве

DIY Custom Analog to Digital Converter using Successive Approximation

Learn how to make a successive approximation (SAR) Analog to Digital Converter (ADC) that’s relatively fast…well, as fast as you want to make it. Using some Flip Flops, a Shift register, some AND gates and a place to latch the output, you can make a custom bit resolution ADC (i.e. 17 bits) with parallel outputs which are easy to work with. The design can be scaled to any resolution that is desired at the expense of extra flip flops and AND gates (1 of each per bit of resolution desired) and speed (it takes N + 1 clock cycles to complete a conversion). This means that if you are making a 9 bit ADC and your clock is set to 10 kHz then it will take 1 ms to make a complete conversion. If you want to sample in the audio range (at least double the highest audible frequency i.e. 44 kHz) then for 8 bit resolution you will need to set your clock at (8+1)*44000 which is 396 kHz. Regular 555 timers are no good at such high frequencies. In any case, thanks for watching. #analog #diy #adc #cd4013 #successive #approximation #register #analogtodigital #converter