Author Topic: ADC circuit using op-amps(741) (Read 1612 times)

yes_secreto · « **on:** February 27, 2011, 09:20:21 PM »

any suggestions po para sa adc circuit using op-amps only,.....plzzzzzzzz...tnx

Philippine Electronics Forum · « **on:** February 27, 2011, 09:20:21 PM »

marcelino · « **Reply #1 on:** February 27, 2011, 09:39:48 PM »

anong ibig mong sabihin na ADC? and ADC kasi is conversion from analog signal to a digital form. ang outputs ng op-amps, analog pa din.

If it helps, refer to this application note: Application Note 31 Op Amp Circuit Collection

Philippine Electronics Forum · « **Reply #1 on:** February 27, 2011, 09:39:48 PM »

PlCUSER · « **Reply #2 on:** February 27, 2011, 09:54:34 PM »

pwd siguro. you will need madaming op-amp. configure your op-amp as a voltage comparator, ok na un. kung gusto mo nang binary output, you can add priority encoder.

Philippine Electronics Forum · « **Reply #2 on:** February 27, 2011, 09:54:34 PM »

rdpzycho · « **Reply #3 on:** February 28, 2011, 12:43:01 AM »

Sigma-Delta modulator = 1-bit ADC.

www.intersil.com/data/an/an9504.pdf

kayang gawin ng puro opamp 'yan.

Philippine Electronics Forum · « **Reply #3 on:** February 28, 2011, 12:43:01 AM »

babyyo · « **Reply #4 on:** February 22, 2012, 09:00:24 AM »

tama si PICUSER ...for ex. you want a 3-bit ADC you will need 3-opamp configured as a comparator
..the analog input is connected to all 3 non-inverting pins while the inverting pins is configured to a voltage divider to the voltage reference..the LSB will have the smalest value ..while the MSB is the highest...therefore the output of the comparator(s) will be either high or low

Philippine Electronics Forum · « **Reply #4 on:** February 22, 2012, 09:00:24 AM »

bootfetch · « **Reply #5 on:** June 15, 2012, 11:53:46 AM »

Pwedeng pa clarify nung tanong?

are you refering to an ADC driver - signal conditioning ckt or an actual ADC?

glutnix_neo · « **Reply #6 on:** June 15, 2012, 03:26:19 PM »

search for flash converters...

Nphula09 · « **Reply #7 on:** June 17, 2012, 10:19:22 AM »

ginawa ko yan dati using comparators and a lot of logic gates. hahah. pero schematic lang, pero alam kong gagana un. kaya hindi ko ginawa sobrang daming logic gate kasi so magastos sa IC. kaya better bili na lang ako ng ADC na ic talaga. XD

Philippine Electronics Forum · « **Reply #7 on:** June 17, 2012, 10:19:22 AM »

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