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help needed for ADC circuit

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hi,

i solved the problem. the problem was caused by a wrongly connected pin. the circuit works fine now. however, it seems to work even without pulsing the switch. this seems weird. by the way i'm running the whole thing on a 6 V dc power supply. any simple ideas on how i can reduce it to 5? i tried biasing with a 2k and a 10k resistor but it doesn't work
 
konzen said:
hi,

i solved the problem. the problem was caused by a wrongly connected pin. the circuit works fine now. however, it seems to work even without pulsing the switch. this seems weird. by the way i'm running the whole thing on a 6 V dc power supply. any simple ideas on how i can reduce it to 5? i tried biasing with a 2k and a 10k resistor but it doesn't work

hi,
Try this, it should be OK.
 
Last edited:
how does that work?
btw should i just leave the switch as it is? it seems to not be contributing to the circuit
 
konzen said:
how does that work?
btw should i just leave the switch as it is? it seems to not be contributing to the circuit

hi,
Sometimes the ADC will work without the Start switch, but sometimes it won't, so leave the switch in as the datasheet says. Use it when it dosn't start itself, OK:rolleyes:

The diode 1N4001 drops about 0.7Volts.
 
im done with my project. demoed it yesterday. thanks alot for helping me with the ADC. here's a pic. cheers
 

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